Set Tenancy Option for Rolling Booking
When we create a new tenancy:
- There will be a new radio button : 'Tenancy Length Type'- It's ‘Fixed Term’ by default
 
- When it's switched to ‘ Rolling’,  there will be a new ‘Rollover Booking Reminder’ date input box- it's empty value by default, please input the positve integer in the box
- for the unit, it's 'Months' by default, you can be allowed to choose from 'Months' (Calendar Month in Definition)and 'Nights'
 
 
