New user or Admin user should have password collected as SecureString

[ionTomorrow]

functions that deal with creating new users or updating their passwords should use convertTo-SecureString and convertFrom-SecureSting to that the password is never available in plaintext

[bdeyo-vmware]

The functions themselves should technically have this done now in the next pull request.

However if an admin is still typing the function at the prompt, the -password value would still show as a plainText string. Although a read-host within the function could prompt to type the secureString, that would be extra work.

How to get a user to create their password as a secureString before passing this is important. Perhaps if there is some easy fail option where if it's not a secureString when passed as a parameter the function then prompts for correction?