HUE-1657 [oozie] Dynamic SLA search page

Starting workflow SLA page
HUE-1656 [oozie] Create empty SLA on new nodes

Second node will use the same values for now.
HUE-1656 [oozie] Create Coordinator SLA
HUE-1656 [oozie] Add 2 new SLA fields
HUE-1656 [oozie] Adding parameters to SLA
Merge remote-tracking branch 'origin/testing' into testing