feat: method waiting for long running operation

[lenkan]

Added a method to wait for longrunning operation in the Operations class. Rewrote the tests to the pattern used in aiding.test.ts. Also using this new method in the integration test.

[codecov]

Codecov Report

Attention: Patch coverage is 94.73684% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 82.91%. Comparing base (39580ef) to head (2f21f4b).

❗ Current head 2f21f4b differs from pull request most recent head 1c1b2e3. Consider uploading reports for the commit 1c1b2e3 to get more accurate results

Files	Patch %	Lines
src/keri/app/coring.ts	94.73%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           development     #236      +/-   ##
===============================================
+ Coverage        82.75%   82.91%   +0.15%     
===============================================
  Files               46       47       +1     
  Lines             4234     4220      -14     
  Branches          1053     1055       +2     
===============================================
- Hits              3504     3499       -5     
+ Misses             725      692      -33     
- Partials             5       29      +24     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.