SRP module for CMaNGOS

this module implements the SRP authentication mechanism for CMaNGOS cores. It can be integrated into go-based content management systems.

example client

the example client creates s and v values that can be inserted into account table of the realmd database.

> ./wowpasswd johndoe
Password: 
Retype Password: 
s: 34508ECC8253DEEF06EB1FA4FEE7645BED7E77BE26D3D41819BEDB9C6B71F619
v: 6D699DCB5C39F693FB301BB633FFCEEF55884CBD87C1E52FC768890CFA769311