feat: added functionality to choose between apache and okHttp for sending HTTP requests via settings

[tangcent]

ref: #1130

[codecov]

Codecov Report

Attention: Patch coverage is 81.68498% with 50 lines in your changes are missing coverage. Please review.

Project coverage is 62.697%. Comparing base (0f706c1) to head (e0fa630).
Report is 1 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff               @@
##              master     #1132       +/-   ##
===============================================
+ Coverage     62.073%   62.697%   +0.624%     
- Complexity      2289      2372       +83     
===============================================
  Files            250       254        +4     
  Lines          12126     12302      +176     
  Branches        2996      3032       +36     
===============================================
+ Hits            7527      7713      +186     
- Misses          2994      3006       +12     
+ Partials        1605      1583       -22     

Flag	Coverage Δ
unittests	62.697% <81.685%> (+0.624%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...main/kotlin/com/itangcent/http/ApacheHttpClient.kt	92.157% <100.000%> (+0.853%)	⬆️
...i/src/main/kotlin/com/itangcent/http/HttpClient.kt	100.000% <ø> (ø)
...m/itangcent/idea/plugin/settings/HttpClientType.kt	100.000% <100.000%> (ø)
...lin/com/itangcent/idea/plugin/settings/Settings.kt	98.225% <100.000%> (+32.038%)	⬆️
...nt/idea/plugin/settings/xml/ApplicationSettings.kt	100.000% <100.000%> (ø)
...m/itangcent/suv/http/AbstractHttpClientProvider.kt	100.000% <100.000%> (ø)
...om/itangcent/suv/http/DefaultHttpClientProvider.kt	100.000% <100.000%> (ø)
.../itangcent/suv/http/HttpClientScriptInterceptor.kt	92.405% <100.000%> (ø)
.../src/main/kotlin/com/itangcent/http/HttpRequest.kt	85.385% <50.000%> (-0.553%)	⬇️
...gcent/idea/plugin/api/export/suv/SuvApiExporter.kt	0.000% <0.000%> (ø)
... and 7 more

... and 4 files with indirect coverage changes

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[KK-Karl]

试了 ，真的可以了。
谢谢大神。