Refactor for Runner + Agent

[rpau]

It refactorizes the project to skip the test ignoring process
from the Test Runner execution, because it needs to rely into an
external agent. Otherwise, the test class has been already loaded and
can not be modified with the @ignore annotations.

[codecov]

Codecov Report

Merging #13 into master will decrease coverage by 2.2%.
The diff coverage is 67.39%.

@@             Coverage Diff              @@
##             master      #13      +/-   ##
============================================
- Coverage     71.24%   69.03%   -2.21%     
+ Complexity      138      137       -1     
============================================
  Files            16       17       +1     
  Lines           546      562      +16     
  Branches         52       54       +2     
============================================
- Hits            389      388       -1     
- Misses          124      138      +14     
- Partials         33       36       +3

Impacted Files	Coverage Δ	Complexity Δ
...it4git/core/reports/AbstractTestReportStorage.java	77.27% <ø> (ø)	6 <0> (ø)	⬇️
...unit4git/core/bytecode/TestIgnorerTransformer.java	29.41% <0%> (+29.41%)	2 <0> (+2)	⬆️
...ain/scala/org/scalatest/junit/ScalaGitRunner.scala	0% <0%> (ø)	0 <0> (ø)	⬇️
.../org/walkmod/junit4git/junit4/Junit4GitRunner.java	85% <100%> (ø)	6 <0> (ø)	⬇️
...g/walkmod/junit4git/core/reports/ReportStatus.java	100% <100%> (ø)	1 <1> (?)
...rg/walkmod/junit4git/junit4/Junit4GitListener.java	84.61% <100%> (-15.39%)	4 <1> (ø)
.../org/walkmod/junit4git/core/TestsReportServer.java	63.82% <66.66%> (-10.53%)	9 <7> (ø)
...d/junit4git/core/reports/GitTestReportStorage.java	79.84% <66.66%> (-3.75%)	30 <0> (-1)
...rg/walkmod/junit4git/javassist/JavassistUtils.java	76.56% <66.66%> (-0.37%)	14 <0> (-1)
.../org/walkmod/junit4git/core/TestsReportClient.java	80% <66.66%> (-8%)	6 <4> (ø)
... and 4 more

---

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 969266e...7d6d853. Read the comment docs.