Feat hardware comp test

[NestorDP]

Pull Request

Description

Related Issue(s)

• Fixes #issue_number

Checklist

• I have tested this code thoroughly.
• My code follows the project's coding standards.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[Copilot]

Pull request overview

This pull request implements hardware component functionality for the Littlebot robot, including control character validation in the driver, RT buffer interface updates, and hardware component configuration logic. However, the implementation contains critical bugs that prevent it from compiling or functioning correctly.

Changes:

• Added control character validation to the driver's requestStatus() method with corresponding error handling
• Implemented on_configure(), read(), and write() methods in the hardware component
• Updated RT buffer interfaces and corrected namespace/include paths
• Downgraded package format from 3 to 2 across multiple packages

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
littlebot_navigation/package.xml	Downgraded package format to 2, but XML schema reference still points to format 3
littlebot_description/package.xml	Downgraded package format to 2, but XML schema reference still points to format 3
littlebot_bringup/package.xml	Downgraded package format to 2, but XML schema reference still points to format 3
littlebot/package.xml	Downgraded package format to 2
littlebot_base/test/test_littlebot_driver.cpp	Added control character validation tests and updated existing tests
littlebot_base/test/mock_rt_buffer.hpp	Removed const qualifier from readRT() mock to match interface
littlebot_base/src/littlebot_hardware_component.cpp	Implemented on_configure() with serial port, RT buffers, and timer setup; implemented read/write methods; contains critical bugs
littlebot_base/src/littlebot_driver.cpp	Added control character validation and stripping logic in requestStatus()
littlebot_base/include/littlebot_base/types.hpp	Added InvalidControlChar error type and counter
littlebot_base/include/littlebot_base/ros_rt_buffer.hpp	Fixed namespace and include path; removed const from readRT()
littlebot_base/include/littlebot_base/littlebot_hardware_component.hpp	Added RT buffer and timer member variables
littlebot_base/include/littlebot_base/i_rt_buffer.hpp	Removed const qualifier from readRT() interface method

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