Add seed and limit arguments to /cbook

[Earthcomputer]

• seed argument to workaround some servers not allowing you to sign large books
• limit argument to workaround some servers not allowing 50 page books

[JABirchall]

+1 @Earthcomputer add an option to do x pages. A server I tried this on has a plugin to block large packets (ViaVersion or protocallib) But pasting each page I I found you can only do 13 pages at a time.
Doing calculations the cause the bug would take 366 books of 13 pages.

[Vonr]

Page option is done on my fork, should be committed into main soon. Also BIG thanks to Earth for helping me troubleshoot and explaining some Java shenanigans :P

[Earthcomputer]

Partially addressed by #7

[Earthcomputer]

Implemented in the latest version