Moved activity-tools module from ui-impl to ui-api.
Moved activity-tools module from ui-impl to ui-api.

git-svn-id: 429faba1de43eff0515934bcbb5f82dba97bbdbc@13702 bf327186-88b3-11dd-a302-d386e5130c1c

apache/incubator-taverna-workbench-common-activities