Fix bug with classes, use slim exclusively, add package private data and change rehaul cmake configs

cmake/helpers.cmake

@@ -0,0 +1,38 @@
+if(CROSSLANG_ENABLE_FFI)
+if(NOT CROSSLANG_STATIC)
+pkg_check_modules(LIBFFI REQUIRED IMPORTED_TARGET libffi)
+target_compile_definitions(crosslang PUBLIC CROSSLANG_ENABLE_FFI)
+target_link_libraries(crosslang PUBLIC PkgConfig::LIBFFI)
+
+endif()
+endif()
+
+if(CROSSLANG_CUSTOM_CONSOLE)
+target_compile_definitions(crosslang PRIVATE CROSSLANG_CUSTOM_CONSOLE)
+
+endif()
+
+if(CROSSLANG_STATIC)
+target_compile_definitions(crosslang PRIVATE CROSSLANG_STATIC)
+
+endif()
+
+configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/CrossLangVersion.h.in "${CMAKE_CURRENT_BINARY_DIR}/include/CrossLangVersion.h"
+INSTALL_DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/CrossLangVersion.h)
+
+target_include_directories(crosslang
+    PUBLIC
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
+    "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
+)
+target_include_directories(crosslang
+    PUBLIC
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>"
+    "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
+)
+
+if(TESSESFRAMEWORK_FETCHCONTENT)
+target_link_libraries(crosslang PUBLIC tessesframework)
+else()
+target_link_libraries(crosslang PUBLIC TessesFramework::tessesframework)
+endif()