fixed generator, new block, examples and humanoid separated

Created by: cparrapa

Hi @SebCanet

There were some bugs in the dance block so i created a new one, fixed a couple of ones on the way, also created some examples but somehow even after modified the examples and separated the examples.json file the picture does not appear on the left, (now the examples.json file is restored to original)

Humanoid has a new category in the toolbar but i don't know where to change the ID name. we also updated the libraries recently and the text block should work but i wanna add an input area.

Thanks