added googletest

.gitignore

 build/
 .idea/
-googletest/
 sprng5/

.gitmodules

 [submodule "mpp"]
 	path = mpp
 	url = git@git.scc.kit.edu:yq8188/mpp.git
+[submodule "googletest"]
+	path = googletest
+	url = https://github.com/google/googletest.git

CMakeLists.txt

-#
-# Loads static libraries mpp_src and lib_ps
-#
-
 cmake_minimum_required(VERSION 3.5.1)
 project(mpp_mlmc)
 #---------------------------------------------------------------------------------------#
 
-## Google test (Placed here to not compile it with mpiCC)
-#add_subdirectory(googletest)
-#include_directories(${PROJECT_BINARY_DIR}/googletest/googletest/include)
-#include_directories(${PROJECT_BINARY_DIR}/googlemock/googletest/include)
-#set(GTEST_LIB gtest gtest_main)
+# Google test (Placed here to not compile it with mpiCC)
+add_subdirectory(googletest)
+include_directories(${PROJECT_BINARY_DIR}/googletest/googletest/include)
+include_directories(${PROJECT_BINARY_DIR}/googlemock/googletest/include)
+set(GTEST_LIB gtest gtest_main)
 #---------------------------------------------------------------------------------------#
 
 # MPI

googletest @ 2134e3fd

+Subproject commit 2134e3fd857d952e03ce76064fad5ac6e9036104