test: (V1) move balance verification to individual test cases

[0xEgao]

fixes #671

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.22%. Comparing base (776b75d) to head (71ffc49).
⚠️ Report is 72 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #672      +/-   ##
==========================================
+ Coverage   68.87%   78.22%   +9.35%     
==========================================
  Files          35       49      +14     
  Lines        4932    15125   +10193     
==========================================
+ Hits         3397    11832    +8435     
- Misses       1535     3293    +1758     

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[mojoX911]

@0xEgao, similar to the taproot swaps, we should name the V1 swaps with taker-abort and maker-abort names. I don't know why I named it this way. But the current names are very confusing. Can be changed in this PR itself.

[0xEgao]

Have made the suggested changes i.e. -:
1-) Ensure makers don't get forced shutdown before recovering their swapcoins (if any present).
2-) Changed the test names as suggested.
3-) added contract balance logging, as well improved comments about balances check wherever possible.

[mojoX911]

Ack