Update schemaPlugins
#543 CSW Harvester: Hide the Add search criteria button if a search criteria is added (only 1 supported in each harvester)
#582 CSW harvester: removing the search filter doesn't work
Merge remote-tracking branch 'upstream/2.10.x' into 2.10.x
Merge remote-tracking branch 'upstream/2.10.x' into 2.10.x