Add pagination / more than top 10

[Folas1337]

I think it would be really awesome if the plugin had pagination, so I could go up to more than just the top 10, also top 20, top 30 and so on.

Either through a little button a the bottom of the chat menu or through a command like '/statistic mine_block stone top 2' or perhaps '... top 20', whatever you prefer/what's easier to code.

Not sure how easy this is to do but I thought I'd suggest it anyway :)