Introduce SerializerConfig

[tefra]

Notes:

• Resolves noNamespaceSchemaLocation? #320 XML Serializer allow declaration version 1.1 #268
• Unify xml declaration for all writes

This is breaking backwards compatibility, but it was time to introduce the serializer config.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Merging #321 (122830c) into master (cb243df) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #321   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           69        70    +1     
  Lines         5613      5636   +23     
  Branches       979       982    +3     
=========================================
+ Hits          5613      5636   +23     

Impacted Files	Coverage Δ
...data/formats/dataclass/serializers/writers/lxml.py	100.00% <ø> (ø)
xsdata/formats/dataclass/serializers/config.py	100.00% <100.00%> (ø)
xsdata/formats/dataclass/serializers/mixins.py	100.00% <100.00%> (ø)
...ta/formats/dataclass/serializers/writers/native.py	100.00% <100.00%> (ø)
xsdata/formats/dataclass/serializers/xml.py	100.00% <100.00%> (ø)
xsdata/models/config.py	100.00% <100.00%> (ø)
xsdata/models/enums.py	100.00% <100.00%> (ø)
xsdata/models/xsd.py	100.00% <100.00%> (ø)

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