Add on-target-tests and prepare for async implementation #26

	on: [push, pull_request]
	name: Build and Test check
	jobs:
	builds:
	name: Build checks
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	mode: ["", "--release"]
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	target: thumbv6m-none-eabi
	override: true
	profile: minimal
	- name: Build workspace
	uses: actions-rs/cargo@v1
	with:
	command: build
	args: ${{ matrix.mode }}
	- name: Test
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --tests --target x86_64-unknown-linux-gnu
	- name: Test docs
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --doc --target x86_64-unknown-linux-gnu
	- name: Clean
	uses: actions-rs/cargo@v1
	with:
	command: clean
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	target: thumbv6m-none-eabi
	override: true
	profile: minimal
	- name: Check unused deps
	uses: aig787/cargo-udeps-action@v1
	with:
	version: latest
	args: ${{ matrix.mode }}

Provide feedback