Simplify3D Tool Change Script

Simplify3D Tool Change Script
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This script is inspired from the Script thread over at the Simplify3D forum, specifically the [post](https://forum.simplify3d.com/viewtopic.php?f=8&t=1959&sid=7e9f12065fe739a1e251012471dd6d2a#p11072) by user [blaknite7](https://forum.simplify3d.com/memberlist.php?mode=viewprofile&u=29611).

My version of Simplify3D doesn't parse the place holder variables for tool temperatures in the tool change script, so I used my absolute printing tem