Add more extension points in the Patient Header

In order to allow easy customization of the Patient Header, add 2 more extension points.

• One located under the patient name, between those 2 lines:
  https://github.com/openmrs/openmrs-module-coreapps/blob/master/omod/src/main/webapp/fragments/patientHeader.gsp#L121-L122
• The other one at the active visit status bar:
  https://github.com/openmrs/openmrs-module-coreapps/blob/master/omod/src/main/webapp/fragments/patientHeader.gsp#L126-L142

In the same time, bring the active visit status bar through one of the extension point, instead of hard coded on the patientHeader.gsp so it can be deactivated if needed.

Background Story:

We have a use case where the client wants to display the Visit Type in the Patient Header next to the active visit status bar.
We also wants to add more functionality in the dashboard, such as a sticky note.