Add Second Factor Authentication to Moqui

[acetousk]

The pull request makes changes to moqui-framework, moqui-runtime, and SimpleScreens.

The biggest things to check are:

• In my development environment, I was occasionally getting 28 second loading screens when calling services in UserServices.xml to create a UserAuthcFactor. Make sure that in other environments this doesn't happen.
• Ensure that the forms don't allow the user to specify their userId so that permissions for users are enforced.

In moqui-framework:

• a dependency is added to a build.gradle file: dev.samstevens.totp:totp:1.7.1
• Email templates, configuration, and files are added for:
  • Sending single use codes
  • Adding the email authc type
  • Notifying the main email address about a new email authc type
• The UserAuthcFactor entity in UserServices.xml
• A minor change to UserGroup entity where the UserGroup can require the users to have a UserAuthcFactor
• Changes to the login process required for having a secondary authentication
• Other necessary minor misc changes to the code

[acetousk]

Because of a lack of planning on my part with git commits on several occasions, I have created a separate, identical pull request: #485.

Closing this PR due to redundant code changes.