Check permissions when attempting to create a project

atst/domain/authz.py

@@ -0,0 +1,8 @@
+from atst.domain.workspace_users import WorkspaceUsers
+
+
+class Authorization(object):
+    @classmethod
+    def has_workspace_permission(cls, user, workspace, permission):
+        workspace_user = WorkspaceUsers.get(workspace.id, user.id)
+        return permission in workspace_user.permissions()