Core/Players: Fix haste rating formulas. They're supposed to be the addition, not the multiplication of all available bonuses

- This change matches client formulas
Core/RBAC: fix RBAC_PERM_COMMANDS_BE_ASSIGNED_TICKET and RBAC_PERM_LOG_GM_TRADE permissions
Core/Misc: Kick player in case of multiple CMSG_PLAYER_LOGIN

Kick player in addition to logging an error in case of multiple CMSG_PLAYER_LOGIN.
Merge pull request #12032 from Trisjdc/haste_formula

Core/Players: Fix haste rating formulas
Merge pull request #12182 from Xter/rbac

Core/RBAC: fix RBAC_PERM_COMMANDS_BE_ASSIGNED_TICKET and RBAC_PERM_LOG_G...