Add linting step for rbx_dom_lua #1294

	name: CI

	on:
	push:
	branches:
	- master

	pull_request:
	branches:
	- master

	jobs:
	build:

	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	rust_version: [stable]

	steps:
	- uses: actions/checkout@v1
	with:
	submodules: true

	- name: Setup Rust toolchain
	run: rustup default ${{ matrix.rust_version }}

	- name: Build
	run: cargo build --verbose

	- name: Run tests
	run: cargo test --verbose

	- name: Build (all features)
	run: cargo build --all-features --verbose

	- name: Run tests (all features)
	run: cargo test --all-features --verbose

	- name: Check Formatting (stable only)
	run: cargo fmt -- --check
	if: matrix.rust_version == 'stable'

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