Add to npcs the capability of to pick objects

[GuillermoBlasco]

Add the capability and, more important, the decision of to pick objects:

• Weapons (is the weapon to pick better than what npc has?)
• power-ups and shields
• health (does the npc needs to pick health pack?)

Estimate hours : 1

Scripts: AgentNpc.cs

Method: notAPickUpObject(GameObject o)

Called at: raycastFront(int dist) line:587

notAPickUpObject() returns true if the object is not a weapon or a power up, and return false if it is

Test:

Check if NPC pass through those objects instead of stop in front of them or jump them

[qfornaguera]

This issue require commitment with @armi7 in weapon case

[GuillermoBlasco]

Tested. Well done!