metadata: Add metadata API

Metadata allows apps to attach properties to objects that can be
read by other apps.
Not complete yet, properties should be removed when the object is
removed.
This commit is contained in:
Wim Taymans 2019-11-03 10:31:14 +01:00
parent 8ddf579cc0
commit 0a81a982f7
12 changed files with 981 additions and 2 deletions

@ -1 +1 @@
Subproject commit 772ec76cd90b4ac089e6903d4a078088cd02e14d
Subproject commit 0c106e677752438fb1446397bac10e578c79b82c