A more customizable tunnel feature

[0xx06]

We (mostly I) need a more customizable tunnel feature. This includes:

• tunneling in parametrizable dimensions (.b tunnel with*height);
• diagonal tunneling

I heard that there are logistical problems to extend the current tunnel feature for these options, but maybe it could become a separate module.

[Thunder33345]

also let's not miss floor block option, (for example always ensure floor to be obsidian) see #319 for width X height and also about filling sides(say you dont want it to be enclosed, also an easier way to deal with lava) see #339 for backfilling see #480 for tunnel and grab blocks if near lets say this can be used as a compilation issue related to tunnel

[5HT2]

Bumping this because it's pretty old and deserves some more attention. The only part left is to add diagonal support.

I might work on this in the future, don't count on it tho

[PossiblePanda]

Bumping! We need this