Introduce select feature for adding immunizations to table

As a user, I need to select an immunization from a list of immunizations so that I can fill the form and save before the immunization is added to my list of immunizations.

Acceptance criteria

• Introduce an Add+ button which will open up a drop-down selector for me to select the appropriate immunization.
• After selecting the immunization, the form should open up and after filling it, the immunization should be added on the table of immunizations.

This ticket is dependent on MF-693 and MF-697