Feature : Enable variant Serializers - Newtonsoft, System.Text.Json

[ChrisPulman]

What kind of change does this PR introduce?

Feature - resolves #666

What is the current behavior?

Only allows for Newtonsoft serializer.

What is the new behavior?

Adds ability to switch Json Serializers.

What might this PR break?

Akavache will no longer have a default Json Serializer and users will need to add an additional package
Akavache.Newtonsoft OR Akavache.Json

Please check if the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:

[codecov]

Codecov Report

Attention: 67 lines in your changes are missing coverage. Please review.

Comparison is base (7ed3a61) 61.05% compared to head (a48d5f3) 60.25%.

❗ Current head a48d5f3 differs from pull request most recent head 01be14d. Consider uploading reports for the commit 01be14d to get more accurate results

Files	Patch %	Lines
...rc/Akavache.NewtonsoftJson/NewtonsoftSerializer.cs	46.87%	24 Missing and 10 partials ⚠️
src/Akavache.Core/BlobCache/InMemoryBlobCache.cs	30.00%	12 Missing and 2 partials ⚠️
....NewtonsoftJson/JsonDateTimeOffsetTickConverter.cs	52.63%	5 Missing and 4 partials ⚠️
src/Akavache.Core/Json/JsonSerializationMixin.cs	0.00%	4 Missing ⚠️
...avache.NewtonsoftJson/JsonDateTimeTickConverter.cs	33.33%	1 Missing and 1 partial ⚠️
src/Akavache.NewtonsoftJson/Registrations.cs	86.66%	1 Missing and 1 partial ⚠️
....Sqlite3/SqlLiteCache/SqlRawPersistentBlobCache.cs	66.66%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #882      +/-   ##
==========================================
- Coverage   61.05%   60.25%   -0.80%     
==========================================
  Files          58       60       +2     
  Lines        2321     2370      +49     
  Branches      363      380      +17     
==========================================
+ Hits         1417     1428      +11     
- Misses        733      755      +22     
- Partials      171      187      +16     

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[listepo]

any news?

[ChrisPulman]

@listepo Unfortunately the features of the original Akavache use parts of Newtonsoft.Bson which there is no equivalent for System.Text.Json.
Reactivemarbles.CacheDatabase has support for both Newtonsoft.Json and System.Text.Json but is missing the features I described. If you are able to use the Reactivemarbles version then I would recommend this.