Inject only required components, not entire profiles

[Patrik-Stas]

Profile abstraction has been introduced to enable smooth transition from vdrtools to modular libs (credx/anoncreds, indy-vdr, askar). Profile represents basket of trait objects to perform variety of operations.

Previously Profile was widely present in aries-vcx codebase as a convenient way to access various lower-level APIs. However this was at the price of:

• passing references to objects down the stack, even though they were never used,
• requiring aries-vcx consumers to build entire "Profile", even though the APIs they've consequently used only used limited number of profile's components (eg, you don't need access to ledger in order to build credential proposal, for example)
• forcing aries-vcx to store building blocks in particular way (Profiles) - but consuming applications might want to store/handle things differntly.

This PR modifies aries-vcx and aries-vcx-core method signatures to be unaware of Profile abstraction - the APIs now only speak in terms of individual components such as dyn BaseAnoncreds, dyn AnoncredsLedgerRead - so the APIs ask only for what they really need.
Additional extra benefit is that it's now much easier to spot fishy stuff, like "oh, this method requires access to ledger? That's weird, why is that???"

[codecov-commenter]

Codecov Report

Merging #873 (5d213d5) into main (f17c05a) will increase coverage by 1.02%.
The diff coverage is 83.53%.

@@            Coverage Diff             @@
##             main     #873      +/-   ##
==========================================
+ Coverage   48.88%   49.90%   +1.02%     
==========================================
  Files         432      432              
  Lines       34337    35058     +721     
  Branches     7612     7608       -4     
==========================================
+ Hits        16784    17497     +713     
- Misses      12277    12284       +7     
- Partials     5276     5277       +1     

Flag	Coverage Δ
unittests-aries-vcx	49.87% <83.53%> (+1.02%)	⬆️

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

Impacted Files	Coverage Δ
...protocols/issuance/holder/states/offer_received.rs	23.52% <0.00%> (ø)
.../protocols/issuance/holder/states/proposal_sent.rs	62.50% <0.00%> (ø)
aries_vcx/src/protocols/issuance/mod.rs	15.00% <0.00%> (+0.71%)	⬆️
aries_vcx/src/common/proofs/prover/prover.rs	45.71% <33.33%> (ø)
aries_vcx/src/handlers/out_of_band/receiver.rs	25.16% <40.00%> (-0.17%)	⬇️
aries_vcx/src/protocols/connection/invitee/mod.rs	69.44% <50.00%> (ø)
...ies_vcx/src/common/primitives/credential_schema.rs	47.28% <55.55%> (+0.83%)	⬆️
aries_vcx/src/common/ledger/transactions.rs	42.99% <55.88%> (+1.08%)	⬆️
...vcx/src/handlers/connection/mediated_connection.rs	48.49% <56.25%> (-0.37%)	⬇️
aries_vcx/src/handlers/issuance/issuer.rs	53.99% <60.00%> (+0.65%)	⬆️
... and 30 more

... and 4 files with indirect coverage changes

[Patrik-Stas]

@gmulhearn if this is fine with you, feel free to merge

Big delta but trivial changes mostly