Add Github actions for colcon build (backport #430) #6

	name: Colcon Build Test
	on:
	push:
	branches:
	- 'rolling'
	- 'iron'
	- 'humble'
	pull_request:
	branches:
	- '*'
	jobs:
	build-test:
	runs-on: ubuntu-22.04
	strategy:
	fail-fast: false
	matrix:
	config:
	- {rosdistro: 'iron', container: 'ros:iron'}
	container: ${{ matrix.config.container }}
	steps:
	- uses: actions/checkout@v4
	with:
	path: src/grid_map
	- name: Pull in repos with vcs
	run: \|
	apt-get update
	vcs import --shallow --skip-existing --input grid_map/tools/ros2_dependencies.repos
	shell: bash
	working-directory: src
	- name: Install Dependencies with Rosdep
	run: \|
	apt update
	rosdep update
	source /opt/ros/${{matrix.config.rosdistro}}/setup.bash
	rosdep install --from-paths src --ignore-src -y --skip-keys "slam_toolbox turtlebot3_gazebo gazebo_ros_pkgs"
	shell: bash
	- name: Colcon Build (Release)
	run: \|
	source /opt/ros/${{matrix.config.rosdistro}}/setup.bash
	colcon build --cmake-args -DCMAKE_BUILD_TYPE=Release --packages-up-to grid_map
	shell: bash
	- name: Test
	run: \|
	source /opt/ros/${{matrix.config.rosdistro}}/setup.bash
	source install/setup.bash
	colcon test --return-code-on-test-failure --paths src/grid_map/* --event-handlers=console_cohesion+
	colcon test-result --all --verbose
	shell: bash

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