Missing include files in CMakeLists for install

[akiriwas]

Several files were missing in the CMakeLists in the include folder for installation:

--- a/include/CMakeLists.txt
+++ b/include/CMakeLists.txt
@@ -8,6 +8,8 @@ set(RAYLIB_CPP_HEADERS
   Camera2D.hpp
   Camera3D.hpp
   Color.hpp
+  FileData.hpp
+  FileText.hpp
   Font.hpp
   Functions.hpp
   Gamepad.hpp
@@ -16,6 +18,7 @@ set(RAYLIB_CPP_HEADERS
   Material.hpp
   Matrix.hpp
   Mesh.hpp
+  MeshUnmanaged.hpp
   Model.hpp
   ModelAnimation.hpp
   Mouse.hpp

[RobLoach]

Thanks for the mention. If you send up a Pull Request with the change, I'd be happy to merge them in.