[CPP] Add warnings to all SDK example apps that would check if propper credentials have been set or it still has the defaults. #76

	name: Run Tests

	on:
	push:
	branches: [master, staging]
	pull_request:
	branches: [master, staging]

	jobs:
	doctests:
	runs-on: ${{ matrix.os }}
	timeout-minutes: 120
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-20.04
	- macos-11.0
	- windows-2019

	include:
	- os: windows-2019
	cmake-generator: -G "Visual Studio 16 2019" -A x64
	cmake-install: "choco install -y cmake"
	dependencies: \|
	choco install -y openssl
	choco install -y visualstudio2017-workload-vctools
	choco upgrade -y visualstudio2017-workload-vctools
	make: msbuild countly-tests.vcxproj -t:rebuild -verbosity:diag -property:Configuration=Release && .\Release\countly-tests.exe
	- os: macos-11.0
	cmake-install: "brew install cmake"
	dependencies: "brew install openssl"
	make: make ./countly-tests && ./countly-tests
	- os: ubuntu-20.04
	cmake-install: "sudo apt-get update && sudo apt-get install -y cmake"
	dependencies: "sudo apt-get update && sudo apt-get install -y libcurl4-openssl-dev"
	make: make ./countly-tests && ./countly-tests

	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	submodules: "recursive"

	- name: Update submodules
	run: git submodule update --init --recursive

	- name: Install CMake
	run: ${{ matrix.cmake-install }}

	- name: Install dependencies
	run: ${{ matrix.dependencies }}

	- name: Set up MSVC
	if: matrix.os == 'windows-2019'
	uses: microsoft/setup-msbuild@v1

	- name: Build and run tests
	run: \|
	cmake -DCOUNTLY_BUILD_TESTS=1 -B build . ${{ matrix.cmake-generator }}
	cd build
	${{ matrix.make }}

Provide feedback