feat(orderBy): Offer order by functionality

related to CAM-799
feat(incident): Add testcases to test runtime api

- Add some test cases to test the exposed method to create a incident
  query in the runtime api

related to CAM-799
feat(incident): Incidents in statistics queries

- support of incidents in statistics queries

related to CAM-799
feat(db): add compounf index in HI_ACT_INST_ table

- add index in HI_ACT_INST_ table for improving runtime performance.

related to #CAM-684
Merge branch 'master' into spring-security