Add real-life JSON5 files and corresponding unit tests

[Copilot]

This PR adds two real-world JSON5 configuration files to the test suite along with corresponding unit tests to validate the parser's ability to handle complex, production-grade JSON5 files.

Changes Made

New Test Files Added

• lib/src/test/resources/harmonyos-ide-hvigor-build-profile-V13.json5 - A comprehensive HarmonyOS IDE build configuration file with nested objects, arrays, and extensive use of JSON5 features like comments and trailing commas
• lib/src/test/resources/blink-renderer-core-frame-settings.json5 - A large Blink renderer configuration file (1,158 lines) demonstrating the parser's capability with complex real-world configurations

New Unit Tests Added

• testParseHarmonyOSBuildProfileJson5() - Validates parsing of the HarmonyOS build profile, checking key structural elements like app, modules, signingConfigs, products, and buildModeSet
• testParseBlinkRendererFrameSettingsJson5() - Validates parsing of the Blink renderer settings, verifying the parameters and data sections with their respective properties

Testing

Both new tests successfully parse their respective files and validate key structural elements without breaking any existing functionality. All 127 tests in the test suite continue to pass.

These additions demonstrate the JSON5 parser's robustness with:

• Complex nested object structures
• Extensive use of single-line (//) and multi-line (/* */) comments
• Trailing commas in objects and arrays
• Mixed quoting styles
• Large file sizes and deep nesting

Fixes #29.

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