Add SCIM System Schema

[amanda-ariyaratne]

Purpose

This pull request introduces support for a new SCIM system schema extension within the WSO2 Identity Server. The changes include schema definition updates, logic enhancements for schema processing, and test coverage to validate the new functionality.

Related Issues

• Revamp SCIM schemas in IS wso2/product-is#20850

[amanda-ariyaratne]

The integration tests were run locally with the changes in following PRs.

1. Add SCIM System Schema wso2/charon#418
2. Move attributes to system schema wso2/carbon-identity-framework#6336
3. Add SCIM System Schema #594
4. Fix integration tests for system and custom schema wso2/product-is#22361

We can merge PRs 1, 2 & 3 and bump their versions in PR 4 and run the integration tests again. Since they are dependent, running the PR builder alone is expected to fail the integration tests.

[codecov]

Codecov Report

Attention: Patch coverage is 29.76190% with 59 lines in your changes missing coverage. Please review.

Project coverage is 47.23%. Comparing base (a8d4a2e) to head (7a010f4).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
...on/identity/scim2/common/impl/SCIMUserManager.java	49.01%	18 Missing and 8 partials ⚠️
...mmon/impl/IdentityResourceTypeResourceManager.java	0.00%	16 Missing ⚠️
...n/identity/scim2/common/utils/SCIMCommonUtils.java	0.00%	15 Missing ⚠️
...ity/scim2/common/internal/SCIMCommonComponent.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #594      +/-   ##
============================================
- Coverage     47.43%   47.23%   -0.20%     
+ Complexity     1120     1039      -81     
============================================
  Files            41       41              
  Lines          9065     9120      +55     
  Branches       2339     2352      +13     
============================================
+ Hits           4300     4308       +8     
- Misses         3838     3878      +40     
- Partials        927      934       +7     

Flag	Coverage Δ
unit	32.92% <29.76%> (-0.08%)	⬇️

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