More GUECS cleanup before releasing. Still need to sort out events and reduce the amount of stuff that GUECS needs.

raycaster.cpp

@@ -10,6 +10,7 @@
 #include "components.hpp"
 #include "textures.hpp"
 #include "systems.hpp"
+#include "shaders.hpp"
 
 using namespace fmt;
 using std::make_unique;