[feat] Implement P2MS tests / features

[b-j-roberts]

Bitcoin has many different transaction types, one of them being P2MS.

In order to support these, we will need to make sure all edge cases and some mainnet P2MS transactions can successfully be validated by Shinigami.

The learnmeabitcoin link can be super helpful in understanding Bitcoin P2MS transactions in depth.

Then, using the learnmeabitcoin P2MS examples and existing Shinigami transaction tests, create a set of tests to ensure all P2MS transactions run properly.

Resources

learnmeabitcoin P2MS Existing P2PK & P2PKH tests in Shinigami

[mubarak23]

@b-j-roberts can I take this

[mubarak23]

@b-j-roberts am still available to work on this

[bloomingpeach]

@b-j-roberts May I work on this?

[manlikeHB]

Hi @b-j-roberts, can i work on this?

[supreme2580]

Hi @b-j-roberts can I be assigned to this?