feat(903): associate token with account

[asenslime]

Detailed description: Associate token with accounts

Which issue(s) this PR fixes: Fixes #903

Special notes for your reviewer:

Checklist

• [ ] Documentation added
• [ ] Tests updated

[codecov[bot]]

Codecov Report

Merging #907 (356638e) into main (44c5e7e) will increase coverage by 0.00%. The diff coverage is 75.00%.

@@           Coverage Diff           @@
##             main     #907   +/-   ##
=======================================
  Coverage   64.11%   64.12%           
=======================================
  Files          86       86           
  Lines        6707     6731   +24     
=======================================
+ Hits         4300     4316   +16     
- Misses       2195     2199    +4     
- Partials      212      216    +4     

Flag	Coverage Δ
unittests	64.12% <75.00%> (+<0.01%)	:arrow_up:

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

Files Changed	Coverage Δ
app/clients/hedera/mirror-node/client.go	70.04% <75.00%> (+0.29%)	:arrow_up:

... and 1 file with indirect coverage changes