Add macOS support and project creation tool

- Add macOS static and dynamic library linking support
- Add cross-platform build scripts for Windows, macOS, and Linux
- Add project creation script with metadata embedding
- Add macOS app bundle creation with icon support
- Update CMakeLists.txt for platform detection
- Fix STB rect pack duplicate symbols
- Remove test images and unused files
- Consolidate documentation into MACOS.md

projects/README.md

@@ -0,0 +1,4 @@
+# All projects go in this folder
+# Projects created by create_project.sh
+
+Each project is a complete ReiLua-Enhanced setup ready to build.