Add support for @JsonView

[ghost]

This PR addresses Issue #33 by updating the HALBeanSerializer to use the _filteredProps when it is not null and there is an active JSON View. The _filteredProps is further filtered since the default Bean Serializer enforces the JSONView in the serializeAsField, which is not used for the serialization of the Link/Embedded props themselves.

[arucard21]

I took a quick look and, while I'm not too familiar with the Jackson databind code, it seems pretty straightforward and looks good. I do have a suggestion for some more tests, which should be easy enough to add with the setup that you already have. It might be good to add the following:

• Test that deserializing also goes well with JsonView using readerWithView()
• Test that serializing goes well when the Java object has JsonView but you don't use it, e.g. by using writerFor()
• Test that deserializing goes well when the Java object has JsonView but you don't use it, e.g. by using readerFor()

[codecov[bot]]

Codecov Report

Merging #37 (627eb0b) into master (c73f726) will increase coverage by 0.17%. The diff coverage is 87.50%.

@@             Coverage Diff              @@
##             master      #37      +/-   ##
============================================
+ Coverage     76.48%   76.66%   +0.17%     
  Complexity       63       63              
============================================
  Files            10       10              
  Lines           353      360       +7     
  Branches         67       69       +2     
============================================
+ Hits            270      276       +6     
  Misses           74       74              
- Partials          9       10       +1     

Impacted Files	Coverage Δ	Complexity Δ
.../jackson/dataformat/hal/ser/HALBeanSerializer.java	82.48% <87.50%> (+0.17%)	4.00 <0.00> (ø)

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[ghost]

I have added the additional tests. The Deserialization tests confirms there are no existing issues wrt JSONViews.

The props in the _filteredProps are wrapped in FilteredBeanPropertyWriter, which makes the decision whether to write the property or not. So just using the _filteredProps was not enough as the HALBeanSerializer doesn't call the FilteredBeanPropertyWriter.serializeAsXXXX method on the prop for Link/Embedded props, but rather call the writeXXXX methods directly.

The additional filtering of _filteredProps is a little over zealous as it handles not just the Link/Embedded props, but all props of the Resource. I don't see this as a big deal and could even improve some performance as all the unnecessary FilteredBeanPropertyWriter.serializeAsXXX calls are skipped.

[langecode]

Thx for the contribution @timothy-volvo and for the review @arucard21 - I have merged it will create a new release soon.