Failing to insert user, needs fixing

* Changed attribute name SMRadius-Capping-Time-Limit to SMRadius-Capping-UpTime-Limit, this makes way for another feature to be added soon

* Changed user. macros to userdb. in hard coded defaults

* Make userdb macros entirely dynamic

* Use  request.  and not  authentication. as macros

Insert into wisp_userdata location

* Fixed incorrect configuration, we need to load the config module for system, not the userdb module

Added locations table and location ID foreign key to wisp_userdata

* Few cosmetic changes

* Fixed Magic1 and Magic2 arrays
* Few cosmetic changes

* Ensure that authentication modules use the attribute details, remove hardcoding

* Added function to get attribute values in attributes.pm
* Fixed some of the function names for attribute operations

Added initial support for realms and realm attributes

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