Added user feature documentation
Added awp user feature library methods
Added not encrypted password test suite
Removed old references in device environment
Added encryption, reworked code
Test session without the add_user test asserts
Completed old password functions removal
Introduced ATS user management
Fixed user adding test
Added encrypted password tests
Extended library and tests for ATS devices
Fixed privilege level 1 bug
ATS encrypted password length is 32 bytes
User creation command has abbreviated keywords
Code reviewed
Merge pull request #20 from mmensuali/user-feature

User feature