Import appropriate portions of the UniStaker codebase

The initial commit starts with a stripped down and slightly updated version of the UniStaker
codebase. In particular, the V3FactoryOwner and all related tests and scripts was removed. It
is specific only to the Uniswap ecosystem and irrelevant to gov staker. Similiarly, the integration
tests, which are Uniswap specifc, were removed, as were the Uniswap related submodules. The forge
standard library was updated, as was OpenZeppelin, and minor changes were made to accomodate slight
differences in these libraries, such as marking some tests as view and reducing the number of iterations
in certain tests to avoid running out of gas. The Solidity version was moved up to 0.8.26 and
constraints on the compiler pragmas were loosened where needed.

.env.template

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+MAINNET_RPC_URL=
+FOUNDRY_PROFILE=default
+DEPLOYER_PRIVATE_KEY=
+PROPOSER_ADDRESS=

.github/workflows/ci.yml

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+name: CI
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+
+env:
+  FOUNDRY_PROFILE: ci
+  MAINNET_RPC_URL: ${{ secrets.MAINNET_RPC_URL }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
+      - name: Build contracts
+        run: |
+          forge --version
+          forge build --sizes
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
+      # https://twitter.com/PaulRBerg/status/1611116650664796166
+      - name: Generate fuzz seed with 1 day TTL
+        run: >
+          echo "FOUNDRY_FUZZ_SEED=$(
+            echo $(($EPOCHSECONDS - $EPOCHSECONDS % 86400))
+          )" >> $GITHUB_ENV
+
+      - name: Run tests
+        run: forge test
+
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
+      # https://twitter.com/PaulRBerg/status/1611116650664796166
+      - name: Generate fuzz seed with 1 day TTL
+        run: >
+          echo "FOUNDRY_FUZZ_SEED=$(
+            echo $(($EPOCHSECONDS - $EPOCHSECONDS % 86400))
+          )" >> $GITHUB_ENV
+
+      - name: Run coverage
+        run: forge coverage --report summary --report lcov
+
+      # To ignore coverage for certain directories modify the paths in this step as needed. The
+      # below default ignores coverage results for the test and script directories. Alternatively,
+      # to include coverage in all directories, comment out this step. Note that because this
+      # filtering applies to the lcov file, the summary table generated in the previous step will
+      # still include all files and directories.
+      # The `--rc lcov_branch_coverage=1` part keeps branch info in the filtered report, since lcov
+      # defaults to removing branch info.
+      - name: Filter directories
+        run: |
+          sudo apt update && sudo apt install -y lcov
+          lcov --remove lcov.info 'test/*' 'script/*' --output-file lcov.info --rc lcov_branch_coverage=1
+
+      # This step posts a detailed coverage report as a comment and deletes previous comments on
+      # each push. The below step is used to fail coverage if the specified coverage threshold is
+      # not met. The below step can post a comment (when it's `github-token` is specified) but it's
+      # not as useful, and this action cannot fail CI based on a minimum coverage threshold, which
+      # is why we use both in this way.
+      - name: Post coverage report
+        if: github.event_name == 'pull_request' # This action fails when ran outside of a pull request.
+        uses: romeovs/[email protected]
+        with:
+          delete-old-comments: true
+          lcov-file: ./lcov.info
+          github-token: ${{ secrets.GITHUB_TOKEN }} # Adds a coverage summary comment to the PR.
+
+      - name: Verify minimum coverage
+        uses: zgosalvez/github-actions-report-lcov@v2
+        with:
+          coverage-files: ./lcov.info
+          minimum-coverage: 100
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          cache: false
+
+      - name: Install scopelint
+        uses: engineerd/[email protected]
+        with:
+          name: scopelint
+          repo: ScopeLift/scopelint
+          fromGitHubReleases: true
+          version: latest
+          pathInArchive: scopelint-x86_64-linux/scopelint
+          urlTemplate: https://github.com/ScopeLift/scopelint/releases/download/{{version}}/scopelint-x86_64-linux.tar.xz
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Check formatting
+        run: |
+          scopelint --version
+          scopelint check
+
+  # slither-analyze:
+  #   runs-on: ubuntu-latest
+  #   permissions:
+  #     contents: read
+  #     security-events: write
+  #   steps:
+  #     - uses: actions/checkout@v3
+
+  #     - name: Run Slither
+  #       uses: crytic/[email protected]
+  #       id: slither # Required to reference this step in the next step.
+  #       with:
+  #         fail-on: none # Required to avoid failing the CI run regardless of findings.
+  #         sarif: results.sarif
+  #         slither-args: --filter-paths "./lib|./test" --exclude naming-convention,solc-version
+
+  #     - name: Upload SARIF file
+  #       uses: github/codeql-action/upload-sarif@v2
+  #       with:
+  #         sarif_file: ${{ steps.slither.outputs.sarif }}

.gitignore

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+# Compiler files
+cache/
+out/
+
+# Ignores development broadcast logs
+!/broadcast
+/broadcast/*/31337/
+/broadcast/**/dry-run/
+
+# Dotenv file
+.env
+
+# Coverage
+lcov.info
+
+# IDEs
+.vscode
+.idea

.gitmodules

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+[submodule "lib/forge-std"]
+	path = lib/forge-std
+	url = https://github.com/foundry-rs/forge-std
+[submodule "lib/openzeppelin-contracts"]
+	path = lib/openzeppelin-contracts
+	url = https://github.com/OpenZeppelin/openzeppelin-contracts