[1.7b7] Thaumaturgist and Pulverizing Auger

[Cathbald]

Lots of weird digging interaction with fat beam.

With auger digging only 1 tiles, you do not dig like a fat beam, only one tile in the direction you fire. Notably, firing in diagonal digs the diagonal square but not those next to you that are "closer"

With Auger digging 3+ tiles, you can't just dig next to you, it'll automatically dig 2 rows of walls. If you fire in diagonal next to you, you'll dig a 3x3 square (with you in a corner). If you fire at or past your max range, we'll see the same issue as 1 tile : you dig the furthest square you can, but not those next to it. So you have a 3 tile wide corridor ending with a 1 tile tip.