Make wallet_handle injectable when creating connection

[Patrik-Stas]

• Make wallet_handle injectable in all functions for Connection. This will be needed when building agency-less Connection implementation
• Delete commented code which was originally trying to retrieve messages from bootstrap agent, but getting this code restored is nowhere near priority, hence deleting

Signed-off-by: Patrik Stas patrik.stas@absa.africa

[codecov-commenter]

Codecov Report

Merging #525 (74f3959) into main (9a59824) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##             main     #525   +/-   ##
=======================================
  Coverage   54.99%   54.99%           
=======================================
  Files         168      168           
  Lines       14588    14588           
  Branches     4031     4031           
=======================================
  Hits         8023     8023           
  Misses       2357     2357           
  Partials     4208     4208           

Flag	Coverage Δ
integration-aries-vcx	42.85% <0.00%> (ø)
unittests-agency-client	23.61% <ø> (ø)
unittests-aries-vcx	51.68% <0.00%> (ø)

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

Impacted Files	Coverage Δ
aries_vcx/src/handlers/connection/connection.rs	52.58% <0.00%> (ø)
aries_vcx/src/handlers/out_of_band/receiver.rs	34.28% <0.00%> (ø)
aries_vcx/tests/utils/devsetup_agent.rs	50.15% <0.00%> (ø)
aries_vcx/tests/utils/scenarios.rs	50.09% <0.00%> (ø)

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