* Delete utilities: address, padding, bytes
* Remove bigEndianToInt
* Fix C compiler error: member reference base type 'char' is not a structure or union
* fix todo comment
Merge note: currently cannot compile due to `quasiBoolean` (#63). This will be solved by https://github.com/status-im/nimbus/pull/65
----
* Implemented most of the stubbed out state handling instructions
The code compiles, but still fails at the moment due to incorrect
initialization of the VM. Don't merge yet. More commits will be
pushed in the coming days.
* Fixed crash
* trie put and del are void now
* getBlockTransactionData and getReceipts
* Working code for extcodesize0.json
* fix origin.json
* fix calldatasize1
* fix calldataloadSizeTooHighPartial
* fix calldataloadSizeTooHigh
* more efficient PushX implementation
* fix and, or, xor
* Move and cleanup interpreter files - prepare for redesign of VM
* fix call comment aobut recursive dependencies
* memory: use a template again and avoid (?) a cstring-> string conversion
* Fix stack test regression
* Fix recursive dependency on logging_ops, test_vm_json compiles but regression :/
* Fix signextend regression
* Fix 3 signed test and sha3 test
* Stack underflow: Add failing test to catch #31
* ensurePop, use proc instead of template + add comment for future refactoring of popInternal
* Check stack underflows before popping values
* run json tests again
* Constants and accounts compile as standalone
* Mass replace ttmath by Stint
* Adapt utils_numeric proc
* Adapt memory.nim
* Deactivate "ValidationError" test that requires pow(2, 256) function
* Fix state_db toByteArrayBE
* Fix more getUint toInt conversion
* Remove absolute value ambiguous call
* Stub-ify proc and opcode that requires pow - https://github.com/status-im/nim-stint/issues/37