Generate "expand" and "flatten" functions for associated external types linked to list, map, set, single nested attributes and blocks #83

	# Continuous integration handling for Go
	name: ci-go

	on:
	pull_request:
	paths:
	- .github/workflows/ci-go.yml
	- .golangci.yml
	- go.mod
	- '**.go'

	permissions:
	contents: read

	env:
	GOPRIVATE: github.com/hashicorp/terraform-plugin-codegen-spec

	jobs:
	golangci-lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
	- uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.1
	with:
	go-version-file: 'go.mod'
	- run: git config --global url.https://${{ secrets.TF_DEVEX_COMMIT_GITHUB_TOKEN }}@github.com/.insteadOf https://github.com/
	- run: go mod download
	- uses: golangci/golangci-lint-action@639cd343e1d3b897ff35927a75193d57cfcba299 # v3.6.0

	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
	- uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.1
	with:
	go-version-file: 'go.mod'
	- run: git config --global url.https://${{ secrets.TF_DEVEX_COMMIT_GITHUB_TOKEN }}@github.com/.insteadOf https://github.com/
	- run: go mod download
	- run: go test -coverprofile=coverage.out ./...
	- run: go tool cover -html=coverage.out -o coverage.html
	- uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
	with:
	name: go-coverage
	path: coverage.html

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