Grant Skills from node / item now can add support gem

[justjuangui]

Grant skill from nodes:

Grant skill from item:

Gems:

This PR also introduce the concept of "Set" with the following rule:

• if Set1 and Set2 then WeaponSet1 = true
• If not Set1 and Set2 then WeaponSet2 = true

Now to precalculate by skill we are taking into account if the gem is from item and if slot have swap to change the option

Triggered Skills isnt yet implemented in POB2