Addon and project after compile scripts (picks up #217)

[danoli3]

Picks up #217 by @roymacdonald - his commit is ported as-is (authored by him, paths moved from ofxProjectGenerator/src to commandLine/src), with a follow-up commit on top. Supersedes #217.

Summary

• ADDON_AFTER_COMPILE_SCRIPT in addon_config.mk (from Feature post compile script xcode #217): a script that runs after the project compiles, per platform section like the other addon keys. += adds lines

  osx:
  	ADDON_AFTER_COMPILE_SCRIPT = cp "$OF_PATH/addons/ofxNDI/libs/NDI/lib/osx/x64/libndi.3.dylib" "$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/MacOS/"
  	ADDON_AFTER_COMPILE_SCRIPT += install_name_tool -change @rpath/libndi.3.dylib @executable_path/libndi.3.dylib "$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/MacOS/$PRODUCT_NAME"
  vs:
  	ADDON_AFTER_COMPILE_SCRIPT = xcopy /Y "$(ProjectDir)..\..\..\addons\ofxNDI\libs\NDI\bin\x64\*.dll" "$(TargetDir)"
  

• Follow-up changes:
  • lines are kept as a list and joined with newlines, not "; " - works for both a shell run script and a cmd post-build event
  • Xcode: each script gets its own PBXShellScriptBuildPhase ("Run Script - After Compile"). Before, every script reused one fixed phase id, so a second addon overwrote the first and the id was added to buildPhases twice
  • Visual Studio: addAfterRule was a no-op - scripts are now appended to the existing per-platform PostBuildEvent Command (after the dll xcopy), so x64 / ARM64 / ARM64EC, Debug and Release all run them
  • Project-level: -P / --postbuild "<script>" on the CLI, and an Advanced Post-build script field in the GUI next to Custom defines (9 locales)
  • PROJECT_AFTER_OSX in config.make now keeps everything after the first = - it split on every =, so echo A=B became echo A

Notes

• Next step after this: generate CMakeLists.txt too, where the same scripts map to add_custom_command(TARGET ... POST_BUILD ...)

Test plan

• Built commandLine and generated against a real OF checkout with a local test addon (osx: two-line script incl. FOO=1, vs: one line) plus -P 'echo project-level':
  • osx: two separate named Run Script phases, addon lines joined by newline, no duplicate phase ids; xcodebuild -list opens the project
  • vs: echo vs-after + echo project-level appended after the xcopy in all three platform PostBuildEvents; the osx: script isn't used
  • PROJECT_AFTER_OSX = echo A=B C=D -> run script echo A=B C=D