Remove dependency on BaseWallet from IndyVdrLedger

[mirgee]

Remove dependency on BaseWallet from IndyVdrLedger in favor of injecting a singing-specific trait implementation.

[codecov-commenter]

Codecov Report

Merging #853 (1adbd52) into main (77310eb) will increase coverage by 0.01%.
The diff coverage is 64.28%.

@@            Coverage Diff             @@
##             main     #853      +/-   ##
==========================================
+ Coverage   49.05%   49.06%   +0.01%     
==========================================
  Files         423      424       +1     
  Lines       34077    34084       +7     
  Branches     7528     7529       +1     
==========================================
+ Hits        16717    16724       +7     
- Misses      12166    12167       +1     
+ Partials     5194     5193       -1     

Flag	Coverage Δ
unittests-aries-vcx	49.03% <64.28%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
..._vcx_core/src/ledger/request_signer/base_wallet.rs	50.00% <50.00%> (ø)
aries_vcx/src/core/profile/modular_libs_profile.rs	83.33% <100.00%> (ø)
aries_vcx_core/src/ledger/indy_vdr_ledger.rs	30.65% <100.00%> (+0.33%)	⬆️

... and 2 files with indirect coverage changes

[Patrik-Stas]

👍

[Patrik-Stas]

@mirgee perhaps this can be cherry picked out out of from top of feature/endorse-txn directly on main? Then we wouldn't have to wait for other stuff to merge, seem like these are pretty self-contained and independent changes

[mirgee]

@mirgee That would not be as simple and straightforward as it might perhaps seem. Of course the conflicts can be fixed, but I don't see a reason to rush this in.