license issues

[BuckarooBanzay]

i copied the airpump textures from manelevations repo (https://github.com/ManElevation/oxygenerators5.2) and assumed the MIT license was correct, but it looks like he copied it from a minecraft mod called "galacticraft" (note here: https://github.com/ManElevation/oxygenerators5.2/blob/master/oxygenerator/README.md, repository here: https://github.com/micdoodle8/Galacticraft) The mc-mod has a prorietary license though: https://github.com/micdoodle8/Galacticraft/blob/master/LICENSE.txt

TODO:

• [ ] replacements for textures

[OgelGames]

Galacticraft Legacy is MIT licensed though, and the same textures are there: https://github.com/TeamGalacticraft/Galacticraft-Legacy/blob/master-1.12/LICENSE

Also, it looks like the textures are not direct copies, but modified/derived versions: (vacuum textures on the top, closest matching textures from galacticraft on the bottom)

And a funny thing I noticed, vacuum_airpump_top.png is 34x34 pixels instead of 32x32 :eyes:

[S-S-X]

It seems like possibly only knobs and pressure gauge been copied and rest of it could be used as a base for new textures. Could make it easier if just adding new pressure gauge and knobs or something else you might find from compressors.

Real life product with capacity similar what vacuum air pump has: