[feat] Implement OP_RESERVED1 and OP_RESERVED2 opcode

[mubarak23]

Implement the OP_RESERVED1 & OP_RESERVED2 following the reference implementation from btcd

References

Guide on how to add an opcode in shinigami

[mubarak23]

@b-j-roberts here is the issue, kindly assign

[b-j-roberts]

If you'd like, you can do OP_VER together with these, since it is another reserved opcode

[mubarak23]

If you'd like, you can do OP_VER together with these, since it is another reserved opcode

i will add it