build: base setup of library packaging and dev tools

.github/workflows/bumpversion.yaml

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+name: Bump version
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  bump-version:
+    if: "!startsWith(github.event.head_commit.message, 'bump:')"
+    runs-on: ubuntu-latest
+    name: "Bump version and create changelog with commitizen"
+    steps:
+      - name: Check out
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          ssh-key: "${{ secrets.GHA_KEY }}"
+      - name: Create bump and changelog
+        uses: commitizen-tools/commitizen-action@master
+        with:
+          push: false
+      - name: Push using ssh
+        run: |
+          git push origin main --tags
+      - name: Print Version
+        run: echo "Bumped to version ${{ steps.cz.outputs.version }}"

.pre-commit-config.yaml

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+repos:
+- repo: https://github.com/asottile/pyupgrade
+  rev: v1.25.0
+  hooks:
+    - id: pyupgrade
+- repo: https://github.com/commitizen-tools/commitizen
+  rev: v3.10.0
+  hooks:
+    - id: commitizen
+    - id: commitizen-branch
+      stages:
+        - push
+- repo: https://github.com/pycqa/isort
+  rev: 5.11.5
+  hooks:
+    - id: isort
+- repo: https://github.com/psf/black
+  rev: 23.9.1 
+  hooks:
+    - id: black

pyproject.toml

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+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "megham"
+version = "0.0.1"
+authors = [{name="Saianeesh Keshav Haridas"}]
+description = "Tools for working with point clouds"
+readme = "README.md"
+requires-python = ">=3.8"
+keywords = ["point cloud", "affine", "rotations", "mds", "multidimensional scaling", "point set registration", "cpd", "coherent point drift", "mpd", "guassian mixture model"]
+license = {text = "GPLv3"}
+classifiers = [ "Programming Language :: Python" ]
+dependencies = ["numpy"]
+
+[tool.commitizen]
+name = "cz_conventional_commits"
+tag_format = "$version"
+version_scheme = "semver"
+version_provider = "pep621"
+update_changelog_on_bump = true