Parity with wiremod#2399 (#112)

**DO NOT MERGE THIS UNTIL wiremod/wire#2399 IS MERGED.**

This PR converts functions that return a table with three numbers to proper Vector/Angle userdata, since that is what vector and angle types will now use in E2 for efficiency.

I'm sweeping through found instances of this on github and making these PRs to make sure the amount of extensions broken by this is minimal.

lua/entities/gmod_wire_expression2/core/custom/camera.lua

@@ -140,13 +140,13 @@ __e2setcost( 10 )
 e2function void cameraPos( index, vector position )
 	local camera = GetCamera( self, index )
 	if not camera then return end
-	camera:SetPos( Vector(position[1],position[2],position[3]) )
+	camera:SetPos(position)
 end
 
 __e2setcost( 2 )
 e2function vector cameraPos( index )
 	local camera = GetCamera( self, index )
-	if not camera then return {0,0,0} end
+	if not camera then return Vector(0,0,0) end
 	return camera:GetPos()
 end
 
@@ -155,15 +155,14 @@ __e2setcost( 10 )
 e2function void cameraAng( index, angle ang )
 	local camera = GetCamera( self, index )
 	if not camera then return end
-	camera:SetAngles( Angle(ang[1],ang[2],ang[3]) )
+	camera:SetAngles(ang)
 end
 
 __e2setcost( 2 )
 e2function angle cameraAng( index )
 	local camera = GetCamera( self, index )
-	if not camera then return {0,0,0} end
-	local ang = camera:GetAngles()
-	return {ang.p, ang.y, ang.r}
+	if not camera then return Angle(0, 0, 0) end
+	return camera:GetAngles()
 end
 
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