Changes

Stop text labels needing to box ints

We can use normal Java 8+ suppliers now rather than Guava's

Save some boxing for the kinetic rotor renderer

The map is unlikely to ever be very big, but every little helps

Make active property optional on TEBlock

If facing is optional, active should be too
The transformer blocks have an active state for transforming up rather than down
The non-classic Cropmatron model also has an active state (despite never using it)

Fix GUIs not opening

Bad change from 08848a
Errors when creating GUIs are silently eaten from PlayMessages.OpenContainer#handle

Fix steam boiler temperature bar having a broken texture

Just a gauge texture typo

Port dev machines

Still needs the commands doing, the ASM is likely to (nearly) all be thrown out
The heat sink model don't seem to be occluding properly