[Implementation progress] Tracking passed VMtests

[mratsim]

Tracking passed VMtests from the JSON fixtures.
https://github.com/status-im/nimbus/tree/master/tests/fixtures/VMTests

VMtests are cloned from official Ethereum VMTests

Working? - Test file
tests/fixtures/VMTests/vmTests/boolean.json
tests/fixtures/VMTests/vmTests/boolean.json
tests/fixtures/VMTests/vmTests/suicide.json
tests/fixtures/VMTests/vmTests/mktx.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhash257Block.json
tests/fixtures/VMTests/vmBlockInfoTest/gaslimit.json
tests/fixtures/VMTests/vmBlockInfoTest/number.json
tests/fixtures/VMTests/vmBlockInfoTest/difficulty.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhashInRange.json
tests/fixtures/VMTests/vmBlockInfoTest/coinbase.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhashOutOfRange.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhashMyBlock.json
tests/fixtures/VMTests/vmBlockInfoTest/timestamp.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhashNotExistingBlock.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhash258Block.json
tests/fixtures/VMTests/vmBlockInfoTest/blockhashUnderFlow.json
tests/fixtures/VMTests/vmBitwiseLogicOperation/slt1.json
tests/fixtures/VMTests/vmBitwiseLogicOperation/or2.json
tests/fixtures/VMTests/vmBitwiseLogicOperation/sgt3.json
tests/fixtures/VMTests/vmBitwiseLogicOperation/xor2.json

[mratsim]

Closing following 8f95c86 and 9fc80cb

Tracking can be done properly in https://github.com/status-im/nimbus/blob/master/VMTests.md