Implement H2 coefficient for OH lifetime #646

	# Build the gtest Hector and run it

	name: C++ unit tests

	# Controls when the action will run.
	on:
	pull_request:
	branches:
	- '**' # matches every branch

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	jobs:
	# This workflow contains one job that builds hector on ubuntu using the
	# googletest framework.
	ubuntu:
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2
	- name: Install gtest
	# based on https://github.com/bastianhjaeger/github_actions_gtest_example
	run: sudo apt-get install libgtest-dev && cd /usr/src/gtest && sudo cmake CMakeLists.txt && sudo make && sudo cp lib/*.a /usr/local/lib
	- name: Install Boost
	run: sudo apt install libboost-filesystem-dev libboost-system-dev
	- name: build and run
	# NB we don't really need to define BOOSTROOT and GTROOT; these are the defaults
	run: \|
	BOOSTROOT=/usr/local/
	GTROOT=/usr/local/
	make testing
	./src/unit-testing/hector-unit-tests

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