Better transaction processor/hydrator code coverage

[DamienHarper]

Small transaction processor/hydrator refactoring to up code coverage

[codecov-commenter]

Codecov Report

Merging #93 (e2a7653) into master (dfe29e1) will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #93      +/-   ##
==========================================
+ Coverage   95.68%   95.75%   +0.06%     
==========================================
  Files          35       35              
  Lines        1392     1390       -2     
==========================================
- Hits         1332     1331       -1     
+ Misses         60       59       -1     

Impacted Files	Coverage Δ
...trine/Auditing/Transaction/TransactionHydrator.php	86.27% <ø> (+1.36%)	⬆️
...rine/Auditing/Transaction/TransactionProcessor.php	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update dfe29e1...e2a7653. Read the comment docs.