Display cache usage in status bar
The cache usage information was removed from the status bar with the switch to buildbox-casd in !1499 (merged). This reimplements the feature using buildbox-casd and depends on BuildGrid/buildbox/buildbox-common!113 and BuildGrid/buildbox/buildbox-casd!72 (merged).
BuildStream still works with older versions of buildbox-casd, however, updated buildbox-casd is required to display the cache usage in the status bar.
Docker images and install instructions on the website have been updated:
Edited by Jürg Billeter