Due to make deterministic order of mentions indices of notifications
for mentions have changed.

accepted typical differences in patterns to new tests
removed duplicate tests that were moved to separate folders; moved some more bridge_api tests to their own folders
added some negative tests

[ABW]: Added .orig.json for all tests (even if not different from pattern) to make it possible to compare with original response of old HiveMind/fat node
Accepted differences in patterns: future cashout_time, max_cashout_time (no longer relevant), rshares/weight related after first payout but before final, last_payout in the same case when payout was ineffective (that difference will last even at full sync), numerical instead of strings for long numbers (consistency)
Changed test comments to reflect current differences (mostly active, some payout related, still plenty of differences in order)

[ABW]: patterns changed as old ones seemed to come from fully synced node - new ones are from 5mln blocks
some tests changed to give nonempty results
fixed rebranding and accepted slight differences in pending payouts (expected)
one pattern broken manually - needs to be investigated because it did not make the test to fail!
indentation in patterns changed to 2 spaces
added comments on why tests are failing

- Added pattern validator
- Added patterns for 5000000 blocks
- Added bridge_api pattern tests - failing tests are marked with XFAIL
- Added marks to all tests

- Added test for hivemind freezed on 11000000 blocks (after HF17),
- Cleanup 5000000 directory: removed not needed files,

Tests runned on hivemind (master) branch, all green.

- Patterns and test definitions moved to proper directories depending on
  block number
- Benchmark moved to proper directory
- Test runners modified to take directory name as a parameter

Added patterns and modified test for 5000000 blocks. Test are in
separate directory.

because hive_functionals test only api supported by hived (not hivemind)
then the tests were moved to hived subdirectory