This requires bumping the python version to 3.10+, because ogmios-python requires this.
I also refactored the chain backend to not have built-in kupo support but just provide it as an extension using kupo-wrappers.
This way, both OgmiosV5 and OgmiosV6 directly have support for kupo.

* Add tests where we try to submit empty or zero multi-assets

* Add tests for empty multiassets

* Fix min_utxo could be none

* Automatically reduce multiassets and assets

* Formatting

* Fix failing test due to now empty multiasset

* Formatting

* A bit more comprehensive on testing

* formatting

* Remove policy id where it is not needed

* Reduce code duplication, include normalization for any serialization

* Fix

* Remove redundant line

* Fix fee too low

User can potentially provide signing keys that are not required by the finalized transaction.
For example, if a transaction include a minting script and signing key for the script, but the minted value is 0, the signature of the minting script isn't required.
This commit will auto detect such cases and skip the signing of this key.

* Fix test

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Co-authored-by: Jerry <[email protected]>

…376)

* Fixed tx imbalance when burning multiple tokens

* Added cases and format

* Added unit test

* Correct unit test

* Removed redundant filtering zero-quantity asset

* Improved name function (unit test)

* Improved unit test

* Fix __iadd__ in assets

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Co-authored-by: Niels <[email protected]>
Co-authored-by: Jerry <[email protected]>