[RFR] 1.0 bis (MERGE IN SECOND)

 - [x]  Add properties insert
 - [x]  Add properties udpate (done but not for nested properties as array or object)
 - [x]  Add node move
 - [ ]  Add child to a node
 - [x] Add workspace insert
 - [x] Add cache layer
 - [x] Improve TreeView render speed on huge tree