TODO : Automatic witness handling for non-witness inputs in SegWit transactions

[JAGADISHSUNILPEDNEKAR]

This PR implements automatic handling of witness data for non-witness inputs in SegWit transactions:

• Added logic to automatically add empty witnesses (0x00) for non-SegWit inputs
• Ensures proper serialization of mixed input transactions
• Maintains backward compatibility with existing code

Test Updates:

• Added tests for automatic witness handling in mixed input transactions

All the tests pass

[JAGADISHSUNILPEDNEKAR]

Hi @karask
Could you please let me know your feedback on this

[karask]

Too many changes are happening in this file. There is a PR (137) that is close of being merged that offered a solution to add the 00 hex. There is also code to add the annex here, after repeatedly made clear that I need a single change per PR.

For the above reasons I will close. Wait to see how the PR #137 goes before you work on those.

[JAGADISHSUNILPEDNEKAR]

Hi @karask
Before creating this PR I went through his implementation
the way we both are integrating are a bit different
Is the way of implementation of his code better? Or is it solely dependent on that I have created many changes
just needed a clarification :)

[JAGADISHSUNILPEDNEKAR]

His implementation requires a manual addition of an empty witness for non-SegWit inputs in SegWit transactions but the way I implemented it was to implement the same thing automatically
I have some unclarity as to why this was closed , Would be glad @karask if I get a detailed feedback on this
That would be quite helpful for me to contribute further in a much better manner