package: macosx: Add vlc-preparser to macOS bundle

Add helper binary into VLC.app bundle into MacOS subdirectory, alongside
the main executable.

extras/package/macosx/package.mak

@@ -66,6 +66,8 @@ endif
 	## Install binary
 	cp "$(macos_destdir)$(prefix)/bin/vlc" $@/Contents/MacOS/VLC
 	install_name_tool -rpath "$(libdir)" "@executable_path/../Frameworks/" $@/Contents/MacOS/VLC
+	cp "$(macos_destdir)$(pkglibexecdir)/vlc-preparser" $@/Contents/MacOS/
+	install_name_tool -rpath "$(libdir)" "@executable_path/../Frameworks/" $@/Contents/MacOS/vlc-preparser
 	## Generate plugin cache
 	if test "$(build)" = "$(host)"; then \
 		VLC_LIB_PATH="$@/Contents/Frameworks" bin/vlc-cache-gen $@/Contents/Frameworks/plugins ; \