any attribute is not rendered if complex type extends other complex type

[gureedo]

• any attribute is not rendered if complex type extends other complex type
• fix GlobalReference mode (global:: gets rendered twice, collection of XmlAttribute rendered without global:: prefix)
• fix duplicate backed value name

[codecov]

Codecov Report

Merging #284 (bb89889) into master (c7f5dcd) will increase coverage by 0.02%.
The diff coverage is 95.91%.

@@            Coverage Diff             @@
##           master     #284      +/-   ##
==========================================
+ Coverage   95.30%   95.33%   +0.02%     
==========================================
  Files          19       19              
  Lines        3238     3279      +41     
  Branches      471      479       +8     
==========================================
+ Hits         3086     3126      +40     
  Misses         90       90              
- Partials       62       63       +1     

Impacted Files	Coverage Δ
XmlSchemaClassGenerator/ModelBuilder.cs	96.88% <89.47%> (-0.17%)	⬇️
XmlSchemaClassGenerator/CodeUtilities.cs	95.11% <100.00%> (+0.09%)	⬆️
XmlSchemaClassGenerator/TypeModel.cs	96.89% <100.00%> (+0.04%)	⬆️
XmlSchemaClassGenerator/Generator.cs	82.60% <0.00%> (+0.72%)	⬆️

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[mganss]

Thanks @gureedo Is this ready for merging?

[gureedo]

Yes!