BZ-1064380 - WorkItemHandlerRuntimeException thrown by system components not accessible

(cherry picked from commit 4cdb6be92692dd4699cf4596a3421516d85b80f7)
BZ-1064960/JBPM4242 - Multiple start event ignore triggers when starting process instance

(cherry picked from commit 9212a766c41d6a0b189adaedbdf07ffe48007568)
BZ-1064956 - Timer operation fails in business central due to lack of cdi request scope

(cherry picked from commit 017552e014f305df3d8e1ee9356b8517a7ebca00)
JBPM-4246 EventTypes is not cleaned up after signaling
- Test case

(cherry picked from commit 5ce4469d72c1315ebb64383ab92f887d0df2d0ba)
BZ-1065213 - EventTypes is not cleaned up after signaling

(cherry picked from commit 15c7480f633be3b7c1062d572fd914f7782ad6a3)
BZ-1064964 - Business central does not allow to have more than one persistence unit defined

(cherry picked from commit b802eedbdb8326a4aaa5fa0935c52cb5e28bcc52)