Sombra rework

Hack is now replaced by hack orb:

•Hack orb is similar to hack but it is a projectile that you fire
•Now does 50 damage

Stealth is now replaced by glitch in the system:

•Gain extra ammo and movement speed for 3 seconds

Translocator is now replaced by firewall:

•Gain extra health for 4 seconds

EMP is now replaced by shield generator:

•Gain recoverable shields

Might add other heroes later