- removed -fpermissive from the C++ flags compiler as it was screwing up the compilation

Signed-off-by: Alexis Maiquez <almamu@almamu.com>

CMakeLists.txt

@@ -2,7 +2,6 @@ cmake_minimum_required(VERSION 3.0)
 project(wallengine)
 
 set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_CXX_FLAGS "-fpermissive")
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
 set(OpenGL_GL_PREFERENCE "LEGACY")