This is a branch of Santa's Nixie Tubes to add some more features, improve its effect on UPS, add compatibility with other mods, and fix some crashes.

Specifically:
* Added a new setting to skip ticks between updates.
* Added support for entities placed via script (for example, Sandboxes)
* Stopped the nixie tubes from updating multiple times a tick, if your update setting is higher than the number of nixies.
* Fixed a crash