Cache frequently used functions and objects

You can store frequently used functions and objects in user variables for faster access.

TEST CASE:

   ep = converttopoly (mesh())    --node
   ep_bo = ep.baseobject      --ediable poly
   polyop_getvert = polyop.getvert    --structure method
   IEditablePoly = ep_bo.EditablePoly   --FPS interface
   IEditablePoly_GetNumMapChannels =
   IEditablePoly.GetNumMapChannels   --FPS interface

FOR 100,000 ITERATIONS:

   polyop.getvert ep 1    -- 470 msec.
   polyop_getvert ep 1    -- 79 msec.
   polyop.getvert ep_bo 1   -- 48 msec.
   polyop_getvert ep_bo 1   -- 0 msec.
   ep.EditablePoly.GetNumMapChannels() -- 76532 msec.
   ep.GetNumMapChannels()   -- 72141 msec.
   ep_bo.EditablePoly.GetNumMapChannels()-- 36688 msec.
   ep_bo.GetNumMapChannels()   -- 34219 msec.
   IEditablePoly.GetNumMapChannels() -- 6454 msec.
   IEditablePoly_GetNumMapChannels() -- 0 msec.

TEST CASE:

   gs = geosphere()
   gs_bo = gs.baseobject
   theBend = bend()
   addmodifier gs theBend

FOR 100,000 ITERATIONS:

   gs.radius     -- 718 msec.
   gs.baseobject.radius    -- 828 msec.
   gs_bo.radius      -- 688 msec.
   gs.modifiers[1].angle    -- 718 msec.
   gs.modifiers[#bend].angle   -- 1187 msec.
   theBend.angle     -- 609 msec.