Ability to mark a field mandatory on rule

[vinayvenu]

The current rules only allow for fields to be mandatory statically. In many scenarios, it is useful to make them mandatory on demand.

Acceptance criteria

• The visibility rule provides an option to override the value of mandatory that is provided on a form element
• Make mandatory and Remove mandatory option provided as an action on the form designer
• Corresponding changes made to the rule generator (rules-config) to apply these changes
• avni-client, rules-server and avni-webapp respect this rule and make fields mandatory based on this result (if provided)

[mahalakshme]

has work on DEA side as well - since it involves changing the UI(mandatory indication - asterik) based on results of rule

[vinayvenu]

@mahalakshme that is acceptance criteria 4, right?