[WIP] Add Rockchip SoC system top level implementation

[Copilot]

Implementation Plan for Rockchip SoC System Monitor (rktop)

• Create Python-based monitoring tool for Rockchip SoCs
• Implement CPU monitoring (usage, frequency, temperature)
• Implement memory usage monitoring
• Implement GPU monitoring (if available)
• Implement process monitoring with top processes display
• Add terminal UI with real-time updates
• Create requirements.txt for dependencies
• Update README with installation and usage instructions
• Add executable script/entry point
• Test the implementation on a system

Original prompt

Rockchip SoC system "top"

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