Integrate budget personnel period

This PR includes budget personnel period details
Integrated mock and wired details as below.
KRACOEUS-7674 - Integrate Budget Personnel Period Mockview
KRACOEUS-7676 - Period Assign Personnel Button Interaction
KRACOEUS-7675 - Personnel Period calculation
KRACOEUS-7677 - Create Edit Assigned Personnel Details Interaction
Linking "Details & Rates" is not included.

Can we fix the spelling of the constant? And maybe move them to a Budget specific constants file as well?