Adds a metadata ioslave to access data from KFileMetadata
This is to expose KFileMetadata API with the ioslave process separation stability addition.
Will be used to close the CC'ed bug. A dolphin patch is in the work to use this and fix the end bug.
Previous work frameworks/kfilemetadata!11 (closed)
Required for system/dolphin!157 (closed)
Edited by Méven Car