feat: display entity API

[zlataovce]

Supersedes #267.

TODO:

• add BlockDisplay example
• add transformation example
• add interpolation example
• explain some more Display methods
• link to minecraft.wiki article (https://minecraft.wiki/w/Display)
• mention hiding the entities from other players - the point of the superseded PR

[MiniDigger]

did you change the url for that one page? if so, it needs a redirect
(cant really tell on mobile)

[zlataovce]

did you change the url for that one page? if so, it needs a redirect (cant really tell on mobile)

the slug is the same, only thing that changed was the file path