Add new json input type that should be used for service properties

[rocktavious]

Changelog

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Tophatting

See the test assertions in TestNewJSON to show how it takes in different types like, bool, number, array and maps and property marshals them to string data that will get passed to our API. We could just use a string and force the customer to use json.Marshal themselves but we don't for 3 reasons

• ease of use
• we need to name the type JsonString in the mutation - see the TestConstructQueryJSON and TestConstructMutationJSON
• we need to have a way to convert it back to a more concrete type

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (d1630db) 76.75% compared to head (48a3591) 76.70%.

❗ Current head 48a3591 differs from pull request most recent head 0e8a0e9. Consider uploading reports for the commit 0e8a0e9 to get more accurate results

Files	Patch %	Lines
json.go	63.63%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #317      +/-   ##
==========================================
- Coverage   76.75%   76.70%   -0.05%     
==========================================
  Files          50       50              
  Lines        3308     3319      +11     
==========================================
+ Hits         2539     2546       +7     
- Misses        565      567       +2     
- Partials      204      206       +2     

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