* "official" -> "scenarios", like the submodule
* fewer test binaries - various compile hacks have been improved over
time, test suite should follow
* remove obsolete bls tests - there are better test vectors in
nim-blscurve
* remove obsolete mentions of `ssz_testing`
* remove obsolete comments about proc vs globals, unittest2 already uses
proc's
* update test submodule [skip ci]
* rename the process_lfs script to setup_official_tests [skip ci]
* clarify that the existing LFS is for json files [skip ci]
* Update again to use download/unpack function library
* update the test downloading script [skip ci]
* Update EF fixtures with new test path
* fix symlink order
* Fix relative:absolute symlink issue
* add symlink existence check
* setup_official_tests.sh: refactoring
* "industrialize" skipping win64 CI
- reintroduce actually working tests
- skip BLS priv_to_pub (tested in blscurve + broken by #440 and #435)
* missing echo
* try/except OSError doesn't seem to work in unittest so plain ignore + move x64 first for fail fast
* ignore transfers completely in WIn64
* Update fixtures to 0.8.3
* v0.8.1 tests use new test path
* LFS caching: handle multiple versions of json_tests
* Enable paths > 260 characters in appveyor
* Appveyor: use git clone core.longpaths + the env variable at startup
* improve process_lfs.sh and cleanup submodules
* handle LFS fixtures for the test suite
* test_fixture_ssz_static.nim: allow the tests to fail properly
- switch to a debug build for the failing tests
* try -d:debug