Display payment addresses instead of extended full viewing keys in test vectors

[murisi]

Describe your changes

An attempt to reduce the amount of screens clicked through on the hardware wallet for shielded/unshielding transactions. This is done by displaying the payment address of a note as the sender (similar to what the Zcash Ledger app does) instead of the extended full viewing key that owns it. This reduces the number of screens required to display a sender from 8 to 3. I.e. there's now 5 less screens to click though, which reduces the amount of time required to sign a shielded transaction once the display lag is considered. Alternative options were considered like displaying just a full viewing key or an incoming viewing key instead of the extended full viewing key, but these do not already have bech32 encodings in Namada nor can they be used in any of the existing interfaces. See attached what the new test vectors would look like: testvecs-fmted.json.gz and testdbgs.txt.gz.

This PR depends upon namada-net/masp#92 to obtain the payment addresses of transaction input notes.

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes
• If this PR requires changes to the docs or specs, a corresponding PR is opened in the namada-docs repo
  • Relevant PR if applies:
• If this PR affects services such as namada-indexer or namada-masp-indexer, a corresponding PR is opened in that repo
  • Relevant PR if applies:

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.

Project coverage is 74.49%. Comparing base (619f79c) to head (5554ab4).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/sdk/src/signing.rs	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4436      +/-   ##
==========================================
- Coverage   74.50%   74.49%   -0.01%     
==========================================
  Files         339      339              
  Lines      110638   110641       +3     
==========================================
- Hits        82432    82425       -7     
- Misses      28206    28216      +10     

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[tzemanovic]

we should make a release before merging

[tzemanovic]

this is ready to use in version 1.3.0