[MrBot] Add timed test suite validation to build_test_folder

[parth21999]

Summary

• Adds validate_timed_test_suite() CMake function that checks integration test files use TIMED_TEST_SUITE_INITIALIZE/CLEANUP macros
• Calls validation automatically from build_test_folder when building integration tests (*int*) on Windows
• Supports skip regex via -Dtimed_test_suite_skip_regex="folder_a|folder_b" for folders that need exemption

Depends on c-build-tools PR that moves the validation script to build_functions/validate_timed_test_suite.ps1.

Test plan

• In a consumer repo with integration tests, run cmake ... -Drun_int_tests=ON and verify validation fires automatically
• With skip regex set, confirm matching test folders are not validated
• Verify unit tests still pass: cmake --build cmake --target test_validate_timed_test_suite

🤖 Generated with Claude Code

[parth21999]

/AzurePipelines run

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[parth21999]

/azp run

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[parth21999]

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add all tests as dependencies. even the ones that fail. add an NumExpectedViolation flag to the script that makes the script exit 0 even if number of expected violations matches the number of actual violations. flag is default 0 obviously.

[parth21999]

Tests should use the cmake function validate_timed_test_suite.

Add a test cases where the skip regex causes the check to be skipped.