Feature/219 pretty print specobject export

[kaklakariada]

See #219

[codecov]

Codecov Report

Merging #229 into develop will increase coverage by 0.61%.
The diff coverage is 98.59%.

@@              Coverage Diff              @@
##             develop     #229      +/-   ##
=============================================
+ Coverage      84.19%   84.81%   +0.61%     
- Complexity       929      985      +56     
=============================================
  Files            118      120       +2     
  Lines           3044     3181     +137     
  Branches         242      246       +4     
=============================================
+ Hits            2563     2698     +135     
- Misses           410      412       +2     
  Partials          71       71

Impacted Files	Coverage Δ	Complexity Δ
.../exporter/specobject/IndentingXMLStreamWriter.java	100% <100%> (ø)	23 <23> (?)
...exporter/specobject/SpecobjectExporterFactory.java	77.77% <100%> (-2.23%)	3 <1> (ø)
...exporter/specobject/DelegatingXMLStreamWriter.java	100% <100%> (ø)	33 <33> (?)
.../openfasttrace/core/xml/SaxParserConfigurator.java	66.66% <66.66%> (-33.34%)	1 <1> (ø)

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