Change password should be not allowed for LDAP and SAML based account

[kiranchavala]

The required feature described as a wish

Steps to reproduce the issue

1. As a admin Create a LDAP or SAML based Users

2. As a admin try to change the password for LDAP or SAML Users

Expected behaviour

Exception message should be thrown saying "Cloudstack doesn't support changing of password for SAML and LDAP user account "

[DaanHoogland]

@kiranchavala , I think we could debate this one. Some operators/users have expressed the wish that if their saml/ldap connections are removed, their users can be falling back to native log-ins. This would contradict each other.

[sureshanaparti]

@kiranchavala , I think we could debate this one. Some operators/users have expressed the wish that if their saml/ldap connections are removed, their users can be falling back to native log-ins. This would contradict each other.

@DaanHoogland @kiranchavala & Others - Can we mark the user as native when their saml/ldap connection is removed? In that case, what's their default password for them or admin would update the password for such users?