Add tests and update licenses

[KenVanHoeylandt]

Replace LGPL from past commit with Apache License 2.0 for the newly created projects:

• in Platforms/*
• TactilityKernel

Add license headers to source code in:

• in Platforms/*
• TactilityKernel
• TactilityFreeRtos

Updated LICENSE.md

Summary by CodeRabbit

• Chores

  • Updated licensing: added Apache-2.0 license documents and SPDX identifiers across many files; removed LGPL-3.0 license documents and adjusted top-level licensing guidance and wording
  • Standardized license naming and reformatted license tables and notices

• Tests

  • Added unit tests for Mutex and RecursiveMutex covering construction, lock state, try-lock/re-entrant behavior, and multi-task blocking scenarios

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[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The PR removes multiple LGPL-3.0 license files and adds Apache-2.0 license documents. LICENSE.md is revised to list updated license assignments and guidance. SPDX license identifiers (Apache-2.0) are added to many header and source files across Platforms, TactilityFreeRtos, and TactilityKernel. Two new unit test files are added: Tests/TactilityKernel/MutexTest.cpp and Tests/TactilityKernel/RecursiveMutexTest.cpp, exercising mutex and recursive-mutex behaviors including construction, locking, try-lock, and cross-task blocking.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the two main changes: adding tests (MutexTest.cpp, RecursiveMutexTest.cpp) and updating licenses (adding Apache 2.0 headers, removing LGPL files, updating LICENSE.md).
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[coderabbitai]

Actionable comments posted: 4

🧹 Nitpick comments (1)

Documentation/ideas.md (1)

5-5: Clarify SPDX TODO to match the updated licensing plan.

The TODO references both GPL-3.0-only and Apache-2.0. If GPL is no longer intended for code files after this update, consider rewording to avoid accidental mislabeling.

✏️ Suggested wording

-- Add `// SPDX-License-Identifier: GPL-3.0-only` and `// SPDX-License-Identifier: Apache-2.0` to individual files in the project
+- Add appropriate SPDX-License-Identifier headers per module license (e.g., Apache-2.0 for Platforms/* and TactilityKernel)