build: ship clang compiler header within Sourcetrail package on macOS and Linux

* replace path to local compiler headers with packaged ones in include path detection
* added app settings migration to replace local compiler header path with path to packaged headers

setup/Linux/install.sh

@@ -20,5 +20,7 @@ ln -f -s /opt/sourcetrail/Sourcetrail.sh /usr/bin/sourcetrail
 update-mime-database /usr/share/mime > /dev/null
 update-desktop-database > /dev/null
 
+mkdir -p ~/.config/sourcetrail
+
 echo "Installation complete."
 echo "Enter 'sourcetrail' to launch application."

setup/MacOSX/bundle_install.sh.in

@@ -79,6 +79,8 @@ cp -R ../../../bin/app/user/projects $RES_DIR/data/fallback/projects
 
 cp -R ../../../bin/app/data/3rd_party_licenses $RES_DIR/3rd_party_licenses
 
+mkdir -p $RES_DIR/data/cxx/include
+cp -R ../../../bin/app/data/cxx/include/* $RES_DIR/data/cxx/include
 
 echo -e $INFO "run macdeployqt to copy Qt Frameworks and Plugins"
 $QT_DIR/bin/macdeployqt $BUNDLE_PATH