create projects on a workspace job

Runs the project creation as a WorkspaceModifyOperation to delay the
events fired untill the creation is complete

Signed-off-by: Gorkem Ercan <gorkem.ercan@gmail.com>
remove unused imports 

Signed-off-by: Gorkem Ercan <gorkem.ercan@gmail.com>
Merge branch 'master' of github.com:eclipse/thym

Signed-off-by: Gorkem Ercan <gorkem.ercan@gmail.com>