finalised the editor of the instance now is managed also the editing of the instance and

not only the creation. Add some little change on the overall color palette
Squashed commits:
-fixed the api for create the instance and completed the functionality of us and cu instance editor
-correct !CHAOS name and added search instance api into metadata services
-fixed the set of the instance for a control unit
-fix xcode include and library path and CMake compilation
-terminated the development of the "setInstanceDescription" for the control unit
and updated the derive table management in qt ccs client. Need to be implemented the attribute table
-added new api to the metadata server for the cu instances, added
a function to CDataWrapper to get the BSON buffer without ownership
-fixed the multithreading usage of method to send request
-added the shared_ptr<CDataWrapper> as future/promises data in this way is more safe the memory management