Add HTTP service contract type support

[TharmiganK]

Purpose

$Subject

Part of:

• [Proposal] Map OpenAPI Specification (OAS) to service object type ballerina-library#6378
• Migrate the OAS generation in the annotation to a static resource ballerina-library#6715

Fixes: ballerina-platform/ballerina-library#6511

Examples

Checklist

• Linked to an issue
• Updated the changelog
• Added tests
• Updated the spec - tracked via Update HTTP spec with the service contract type ballerina-library#6816
• Checked native-image compatibility
• Checked the impact on OpenAPI generation

[codecov]

Codecov Report

Attention: Patch coverage is 67.26115% with 257 lines in your changes missing coverage. Please review.

Project coverage is 80.24%. Comparing base (b0932a9) to head (020bad2).
Report is 1 commits behind head on master.

Files	Patch %	Lines
...odemodifier/contract/ContractInfoModifierTask.java	32.07%	68 Missing and 4 partials ⚠️
...compiler/HttpServiceContractResourceValidator.java	61.79%	21 Missing and 13 partials ⚠️
...ina/stdlib/http/compiler/HttpServiceValidator.java	77.51%	11 Missing and 18 partials ⚠️
.../compiler/codeaction/ImplementServiceContract.java	59.09%	16 Missing and 11 partials ⚠️
...odifier/payload/PayloadAnnotationModifierTask.java	41.17%	16 Missing and 4 partials ⚠️
...a/stdlib/http/compiler/HttpCompilerPluginUtil.java	59.45%	6 Missing and 9 partials ⚠️
...demodifier/payload/HttpPayloadParamIdentifier.java	68.75%	9 Missing and 1 partial ⚠️
...java/io/ballerina/stdlib/http/api/HttpService.java	76.92%	4 Missing and 5 partials ⚠️
...lib/http/compiler/ResourceFunctionDeclaration.java	63.15%	7 Missing ⚠️
...dlib/http/compiler/HttpServiceObjTypeAnalyzer.java	72.72%	2 Missing and 4 partials ⚠️
... and 11 more

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2037      +/-   ##
============================================
- Coverage     80.71%   80.24%   -0.47%     
- Complexity      561      668     +107     
============================================
  Files           401      408       +7     
  Lines         22353    22914     +561     
  Branches       5166     5266     +100     
============================================
+ Hits          18042    18388     +346     
- Misses         3241     3395     +154     
- Partials       1070     1131      +61     

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[sonarqubecloud]

Quality Gate passed

Issues
17 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.4% Duplication on New Code

See analysis details on SonarCloud