limit accepted message passwords based on password policy

[tomholub]

part of #1545

[tomholub]

We'll need a method that will validate user message passwords to make sure it complies with password policy. I'll share the policy separately (not public).

[DenBond7]

@tomholub Any news here?

[tomholub]

Sorry, it's stuck on me.

[DenBond7]

Don't worry. I'm going to work on #1620

[tomholub]

when using FES to send the password protected message, use the following password rules:

• minimum one uppercase
• minimum one lowercase
• minimum one number
• minimum one special character such as eg &"#-'_-@,;!*()[] etc
• minimum length 8 characters

[tomholub]

The implementation can check for all of these rules at once and when not conforming, show:

Password didn't comply with company policy, which requires at least:

 - one uppercase
 - one lowercase
 - one number
 - one special character eg &"#-'_%-@,;:!*()
 - 8 characters length

Please update the password and re-send.