Rename geometry and serializer files

Apply the rename manifest, normalize serializer filenames to the classes they define, and update includes and CMake source lists.

Generated with the assistance of an AI coding tool.

src/ifcgeom/serialization/CMakeLists.txt

@@ -0,0 +1,32 @@
+set(geometry_serialization_plugin_runtime_dir "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>")
+
+add_subdirectory(schema)
+
+add_library(geometry_serializer serialization.cpp opencascade_geometry_ifc_writer_plugin.cpp)
+target_include_directories(geometry_serializer PUBLIC
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../..>
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
+if((NOT WIN32) AND BUILD_SHARED_LIBS AND NOT WASM_BUILD AND NOT CREATE_BUNDLE AND NOT CMAKE_INSTALL_RPATH AND COMMAND SET_INSTALL_SELF_RPATH)
+    SET_INSTALL_SELF_RPATH(geometry_serializer)
+endif()
+set_target_properties(geometry_serializer PROPERTIES
+    OUTPUT_NAME "ifcopenshell.geometry.writer"
+    COMPILE_FLAGS "-DIFC_GEOMSERIALIZATION_EXPORTS"
+    RUNTIME_OUTPUT_DIRECTORY "${geometry_serialization_plugin_runtime_dir}"
+    LIBRARY_OUTPUT_DIRECTORY "${geometry_serialization_plugin_runtime_dir}"
+)
+target_link_libraries(geometry_serializer plugin IfcGeom IfcParse geometry_kernel_opencascade ${OpenCASCADE_LIBRARIES})
+set(IFCOPENSHELL_LIBRARIES ${IFCOPENSHELL_LIBRARIES} "geometry_serializer")
+set(IFCOPENSHELL_LIBRARIES ${IFCOPENSHELL_LIBRARIES} PARENT_SCOPE)
+
+install(FILES serialization.h
+    DESTINATION ${INCLUDEDIR}/ifcgeom/serialization
+)
+
+install(
+    TARGETS geometry_serializer ${geometry_serializer_libraries}
+    EXPORT ${IFCOPENSHELL_EXPORT_TARGETS}
+)
+
+set(geometry_serializer_libraries ${geometry_serializer_libraries} PARENT_SCOPE)