We improved the ScriptVisitor.
And , we will implement the script for Witness so that,
Segwit also works on the old core.
Commit: We improved the ScriptVisitor.
https://github.com/FromHDDtoSSD/SorachanCoin-qt/commit/5089b43c0dd6fe0526a44b9b473a0cecc48c77e8
