Enhance debugging capabilities and update build configuration

- Introduced a new debug logging mechanism by defining `dbg_log` for conditional logging based on the `DEBUG_BUILD` option.
- Updated `build.ps1` to include a debug flag for CMake configuration.
- Refactored logging calls across multiple source files to utilize the new `dbg_log` function, improving consistency and clarity in debug output.
- Added a new header file `debug-log.h` to centralize debug logging definitions.

CMakeLists.txt

@@ -160,8 +160,11 @@ else()
     set(_PLUGIN_VER "${PROJECT_VERSION}")
 endif()
 
+option(DEBUG_BUILD "Debug build: show update dialog but don't stop server" OFF)
+
 target_compile_definitions(easy-irl-stream PRIVATE
     PLUGIN_VERSION="${_PLUGIN_VER}"
+    $<$<BOOL:${DEBUG_BUILD}>:DEBUG_BUILD>
 )
 
 set_target_properties(easy-irl-stream PROPERTIES PREFIX "")