Refactor CMake configuration: separate RPT core library into its own CMakeLists.txt and streamline SWIG integration

rpt/CMakeLists.txt

@@ -0,0 +1,24 @@
+# RPT Core Library
+
+set(RPT_SOURCES
+    camera.cpp
+    interface.cpp
+    triangulator.cpp
+)
+
+add_library(rpt_core STATIC ${RPT_SOURCES})
+
+target_include_directories(rpt_core PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+target_compile_options(rpt_core PRIVATE
+    -fPIC
+    -march=native
+    -Wall
+)
+
+# Release mode optimizations
+target_compile_options(rpt_core PRIVATE
+    $<$<CONFIG:Release>:-O3;-flto=auto>
+)