Allow fixed paths in TQPathManager

Release notes

TQPathManager::setAlwaysReturnLocalPath(...) enforces that for a certain file always a local path is returned (even in getTargetPath).

Details

This can be useful in case a user writes something to a local file and wants to read from it later. The user can tell the TQPathManager that this local file should be used in all cases. This avoids failure in case getTargetPath(...) is called later for reading.