ci tests

[djrtwo]

Ports testing and spec build script from research repo. Note this PR is against master and will be backported into dev

Things:

• build scrip in scripts/phase0
• added Makefile to build executable spec and compile dependencies
• dependencies and stubs added to utils/phase0. This includes minimal ssz, merklization, etc.
• tests
  • ported sanity_check from research repo. no additional tests
  • two "marks" exist -- sanity and minimal_config -- for running quick tests locally. Run these limited marks via make test
  • CI runs full tests against minimal config and default config. If this gets out of hand, we can strip it down and just have releases have to pass the full tests.
  • note: these tests currently bypass the bug found in Block header signature issue #797 by considering the root of a block to be the hash_tree_root of the block with EMPTY_SIGNATURE. Will update these tests depending on which way Block header signature issue #797 goes.

Note, this will probably get a round or two of cleanups but wanted to get this up for merge now because its a blocker on all other PRs

[hwwhww]

Great work!!! 🎉🎉🎉

Note, this will probably get a round or two of cleanups but wanted to get this up for merge now because its a blocker on all other PRs

Yep. I only did a quick review for now and approving. I will review (and probably refactor) it when it's in dev branch.

[vbuterin]

👍