fix: caching data - take two

[ericleponner]

Description:
Changes below

• introduce new cache object AppCache which groups references to all other caches
• replace injections of individual caches by AppCache injection
• encapsulate TransactionBaseModel.computeSignatureKey() in AppCache.computeSignatureKey()
• replace TransactionBaseModel.computeSignatureKey() invocations by AppCache.computeSignatureKey()

Related issue(s):

Another step for fixing #2521

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.95%. Comparing base (cabb25d) to head (45fc9de).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2673   +/-   ##
=======================================
  Coverage   99.95%   99.95%           
=======================================
  Files         184      184           
  Lines        7447     7447           
  Branches     1493     1489    -4     
=======================================
  Hits         7444     7444           
  Misses          3        3           

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