Summary of what is left to do

Change PersonType Table to have PK of PersonTypeID and change PersonType
column to PersonType text. Populate this table with different types like
LESAS, Employee.

Add dropdown menu for person type on create person form and update
person form. Add LESAS specific data for create a new person form.

Write some logic in the repository for creating a reference based on the
claim type they have made. For example if it's immigration, claimref
will be IMM001.