Core: xSysDefines - fix Android
Tests: fix
Core: CxString - fix
Core: CxString - fix
CMake: android.toolchain.cmake - fix
Log: .gitkeep - remove
CMake: enable tests
CMake: FindOS.cmake - add
CMake: CMakeVars.cmake -> CMakeVariables.cmake
CMake: CMakeLists.txt - fix include
CMake: Configure.cmake - fix
CMake: FindOS - disable cache
CMake: add Android includes
Core: xCore_android - add
CMake: FindExecInfo - fix
CMake: review, fix
CMake: FindExecInfo - fix
CMake: fix
CMake: FindAddr2Line - add
CMake: MARK_AS_ADVANCED - remove