Arslan issue 1496 new password

[arslan70]

Now that I think about it this PR simple covers

1. Renaming auth_token field to password field
2. Handle the related schema/dao and script changes
3. Use http://www.mindrot.org/projects/jBCrypt/ library to handle hashing of password and comparison of password provided for authentication.
4. This PR is incomplete without https://github.com/RestComm/Restcomm-Connect/pull/2201
5. UI changes are not covered in this. Only the java script files are changed to send the password without hashing.

[deruelle]

Thanks @arslan70. @otsakir can you please help review this one ?