0.8.1 - Back-ported all features from 1.16.2/1.16.3 (0.3.3) to 1.15.1/1.15.2

+ Added some more overlays (like brick overlays, chiseled overlays, etc.), can be activated by right-clicking blocks with gunpowder

* Fixed waterlogging ability for slabs, blocks (cubes), chests and fence gates (#7)

* Changed boundary box of frame and illusion block (cube) when empty to work with waterlogging

* Fixed some squished textures

* Fixed bed-dupe-bug (when breaking beds, they wont drop two beds anymore)

* You can now place frame/illusion blocks on other frame/illusion blocks without sneaking (except for blocks, that have any interaction behaviour like opening/closing, e.g. doors, gates, chests, ...) (#10)

* Combined versions 1.16.2 and 1.16.3, should be working as expected

* When in creative, blocks will no longer be consumed when right-clicking an empty frame/illusion block (#9)

* When in creative, contained blocks will no longer be dropped, when breaking a frame/illusion block (#11)

* Updated lang files