Allow providing name hints using tags for anonymous body structs

[lsdch]

Small change introducing the possibility to provide name hints for request/response body through struct tags. Previously discussed in #322

Example:

type EndpointInput struct {
  Body struct {
    SomeData string `json:"some_data"`
  } `name-hint:"SomeName"`
}

Because it defines a name hint, it only applies to anonymous types. We could go further and allow overriding the name altogether but that would involve changing the schema namer interface (func (t reflect.Type, hint string) string) to include one more parameter, which might break backward compatibility.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.73%. Comparing base (ed2c3cd) to head (f2d014e).
Report is 9 commits behind head on main.

❗ Current head f2d014e differs from pull request most recent head 831b1db. Consider uploading reports for the commit 831b1db to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #416      +/-   ##
==========================================
+ Coverage   92.65%   92.73%   +0.08%     
==========================================
  Files          21       21              
  Lines        3539     3552      +13     
==========================================
+ Hits         3279     3294      +15     
+ Misses        221      220       -1     
+ Partials       39       38       -1     

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[danielgtaylor]

This is awesome, thank you!