TODOs for the very basic state transition

[hwwhww]

Trying to re-prioritize it.

Goals

1. The most basic state transition - without any transaction/operation
2. Correctness
   • @hwwhww: it's still hard to target at one certain spec release when debugging the spec, but hopefully we can aim at the next release...
3. And then adding attestation transactions/operations into the game

Trinity

Issue	Description	PR	Done
#272	Implement swap-or-not shuffle	#363
#345	Fix validate_attestation_slot	#352
#343	Sync with the spec - data structures	#349, #355, #353, #351
#223	Implement "per-epoch processing - validator registry" section	#314
#284	Enable RANDAO	#367
#365	Enable SSZ tree hashing -> blocking by Py-SSZ issues?
#323	Implement beacon chain state transition process_exit_queue	#385
#326	Implement eth1_data_vote processing per block	#375
#259	Set GENESIS_SLOT to 2**32	#371

BLS

Issue	Description	PR	Done
#329	Port to py_ecc + bugfixes	ethereum/py_ecc/pull/52

Py-SSZ

https://github.com/ethereum/py-ssz/milestone/1

Please comment if I missed anything. 🙏

edit: added PR for #259.

[hwwhww]

Update: added #259

[ralexstokes]

looks like we have done everything here?