Feat: Config deserialization

[ianshade]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  Adds deserialization to the response of INFO CONFIG

• What is the current behavior? (You can also link to an open issue here)
  Config is returned as unknown, unparsed.

• What is the new behavior (if this is a feature change)?
  Config is parsed from XML to follow the InfoConfig interface, which is based on the config elements available in CasparCG 2.4. Any untyped, different or non-standard elements can be accessed through raw or rawXml properties.

• Other information:
  I'm opening this PR towards a feature branch that has already an open PR, so that my changes are easier to review on their own.

[codecov-commenter]

Codecov Report

Attention: 30 lines in your changes are missing coverage. Please review.

Comparison is base (61b581b) 81.62% compared to head (f41399c) 81.32%.

Additional details and impacted files

@@                 Coverage Diff                  @@
##           feat/return-data     #193      +/-   ##
====================================================
- Coverage             81.62%   81.32%   -0.30%     
====================================================
  Files                     7       14       +7     
  Lines                   604      723     +119     
  Branches                110      164      +54     
====================================================
+ Hits                    493      588      +95     
- Misses                  108      131      +23     
- Partials                  3        4       +1     

Files	Coverage Δ
src/commands.ts	100.00% <ø> (ø)
src/deserializers/deserializeInfoChannel.ts	100.00% <100.00%> (ø)
src/deserializers/deserializeXML.ts	100.00% <100.00%> (ø)
src/lib.ts	100.00% <100.00%> (ø)
src/deserializers/deserializeClipInfo.ts	93.75% <93.75%> (ø)
src/deserializers/deserializeInfo.ts	85.71% <85.71%> (ø)
src/deserializers/deserializeInfoLayer.ts	66.66% <66.66%> (ø)
src/deserializers/index.ts	94.44% <94.44%> (ø)
src/deserializers/deserializeVersion.ts	88.23% <88.23%> (ø)
src/deserializers/deserializeInfoConfig.ts	73.91% <73.91%> (ø)

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[mint-dewit]

I am personally not a fan of redefining the entire config structure in this library, it feels like that is doing too much.

Still approving because casparcg is developed slowly enough and there is a (albeit clunky) way of accessing untyped config.