feat: Enable Unity builds for faster compilation

- Added an option to enable Unity (Jumbo) builds in CMake.
- Updated CMakeLists.txt to conditionally set CMAKE_UNITY_BUILD and batch size.
- Removed outdated analysis documentation for overworld implementation.
- Deleted z3ed resources YAML file as it is no longer needed.
- Refactored CMake files to modularize the build system, separating core, editor, gfx, gui, and zelda3 components into library files.
- Added precompiled headers for various libraries to improve compilation times.
- Updated yaze_config.h.in to define IMGUI_DEFINE_MATH_OPERATORS for C++ compatibility.
- Enhanced editor integration tests with necessary includes for ImGui.

src/app/gfx/gfx.cmake

@@ -1,18 +0,0 @@
-set(
-  YAZE_APP_GFX_SRC
-  app/gfx/arena.cc
-  app/gfx/atlas_renderer.cc
-  app/gfx/background_buffer.cc
-  app/gfx/bitmap.cc
-  app/gfx/compression.cc
-  app/gfx/memory_pool.cc
-  app/gfx/performance_dashboard.cc
-  app/gfx/performance_profiler.cc
-  app/gfx/scad_format.cc
-  app/gfx/snes_palette.cc
-  app/gfx/snes_tile.cc
-  app/gfx/snes_color.cc
-  app/gfx/tilemap.cc
-  app/gfx/graphics_optimizer.cc
-  app/gfx/bpp_format_manager.cc
-)

src/app/gfx/gfx_library.cmake

@@ -1,3 +1,22 @@
+set(
+  YAZE_APP_GFX_SRC
+  app/gfx/arena.cc
+  app/gfx/atlas_renderer.cc
+  app/gfx/background_buffer.cc
+  app/gfx/bitmap.cc
+  app/gfx/compression.cc
+  app/gfx/memory_pool.cc
+  app/gfx/performance_dashboard.cc
+  app/gfx/performance_profiler.cc
+  app/gfx/scad_format.cc
+  app/gfx/snes_palette.cc
+  app/gfx/snes_tile.cc
+  app/gfx/snes_color.cc
+  app/gfx/tilemap.cc
+  app/gfx/graphics_optimizer.cc
+  app/gfx/bpp_format_manager.cc
+)
+
 # ==============================================================================
 # Yaze Graphics Library
 # ==============================================================================
@@ -14,6 +33,12 @@
 
 add_library(yaze_gfx STATIC ${YAZE_APP_GFX_SRC})
 
+target_precompile_headers(yaze_gfx PRIVATE
+  <vector>
+  <string>
+  <memory>
+)
+
 target_include_directories(yaze_gfx PUBLIC
   ${CMAKE_SOURCE_DIR}/src
   ${CMAKE_SOURCE_DIR}/src/lib