Add option for enabling install targets #254

	---
	name: Install

	on:
	push:
	branches:
	- master
	- develop
	pull_request:
	branches:
	- master
	- develop

	env:
	CTEST_OUTPUT_ON_FAILURE: 1
	CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- uses: actions/cache@v3
	with:
	path: "**/cpm_modules"
	key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('/CMakeLists.txt', '/*.cmake') }}

	# - name: install ninja
	# sudo apt-get install ninja-build

	- name: build and install library
	run: \|
	cmake -S . -B build -DCMAKE_CXX_STANDARD=17 -DCMAKE_BUILD_TYPE=Release -DBOOST_UT_ENABLE_RUN_AFTER_BUILD=NO
	sudo cmake --build build --target install
	rm -rf build

	- name: configure
	run: cmake -S test -B build -DCMAKE_CXX_STANDARD=17 -DTEST_INSTALLED_VERSION=1 -DBOOST_UT_ENABLE_RUN_AFTER_BUILD=NO

	- name: build
	run: cmake --build build --config Debug -j4

	- name: test
	run: \|
	cd build
	ctest --build-config Debug

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