[c12657] Implement spells 48129, 60320, 60321

Original implemented by Tartalo and Faq at TC.
Thanks to NeatElves for porting

Signed-off-by: Schmoozerd <schmoozerd@cmangos>

(based on commit [12466] - 2d9047e)

Signed-off-by: Dramacydal <PulLumBerMal@gmail.com>
[c12658] Add outcommented helper to assign zone/area to gameobject by guid

(based on commit ceb9305)

Signed-off-by: Dramacydal <PulLumBerMal@gmail.com>
[c12659] Add GO-Casting to SCRIPT_COMMAND_CAST_SPELL

Close cmangos/issues#203

(based on commit [12467] - c10539a)
[c12660] Use normal cast time for triggered spells by default

Close cmangos/issues#195

Please report problems that might (or might not) arise

Signed-off-by: Schmoozerd <schmoozerd@cmangos>

(based on commit [12468] - 47aa389)