typegen directory and events inconsistency

[xmonader]

Noticed that envs don't have the same files

also

• what are the tfchainversions.jsonl files?
• events inconsistency in typegen files?

[DylanVerstraete]

Addressed here: threefoldtech/tfchain#814

[sameh-farouk]

Verification note:

Addressed here: threefoldtech/tfchain#814

@DylanVerstraete can you point where exactly that was addressed. PR contains A lot on info. also can we address this in this repo docs if possible (at least with link to relative section)