Remove wire turret whitelist (#3566)

* Remove turret models whitelist
There is no reason to limit it to just that

* Check for attachment

* Don't rely on physobj

Author: Astralcircle

lua/entities/gmod_wire_turret.lua

@@ -27,7 +27,10 @@ function ENT:Initialize()
 	self.Firing       = false
 	self.spreadvector = Vector()
 	self.effectdata   = EffectData()
-	self.attachmentPos = phys:WorldToLocal(self:GetAttachment(1).Pos)
+
+	-- Not all entities have an 1 attachment
+	local attachment = self:GetAttachment(1)
+	self.attachmentPos = attachment and self:WorldToLocal(attachment.Pos) or vector_origin
 
 	self.Inputs = WireLib.CreateSpecialInputs(self,
 		{ "Fire", "Force", "Damage", "NumBullets", "Spread", "Delay", "Sound", "Tracer" },

lua/wire/stools/turret.lua

@@ -45,20 +45,6 @@ if SERVER then
 	end
 end
 
-local ValidTurretModels = {
-	["models/weapons/w_smg1.mdl"] = true,
-	["models/weapons/w_smg_mp5.mdl"] = true,
-	["models/weapons/w_smg_mac10.mdl"] = true,
-	["models/weapons/w_rif_m4a1.mdl"] = true,
-	["models/weapons/w_357.mdl"] = true,
-	["models/weapons/w_shot_m3super90.mdl"] = true
-}
-
-function TOOL:GetModel()
-	local model = WireToolObj.GetModel(self)
-	return ValidTurretModels[model] and model or "models/weapons/w_smg1.mdl"
-end
-
 function TOOL.BuildCPanel( CPanel )
 	WireToolHelpers.MakePresetControl(CPanel, "wire_turret")