- Updated blockly_app to replace LED blocks with digital input/output blocks.
- Added digitalIn.js and digitalOut.js blocks for reading and writing GPIO states.
- Removed led_on.js and led_off.js blocks as they are no longer needed.
- Modified manifest.js to include new digital blocks.
- Enhanced blockly_executor to handle digital input and output commands.
- Created a new Hardware context class to manage dummy and real hardware modes.
- Implemented GPIO node for Raspberry Pi to handle digital input/output via gpiod.
- Added GpioWrite and GpioRead message definitions for communication between executor and GPIO node.
- Updated tests to cover new digital input/output functionality and removed old LED tests.
- Introduced a new Blockly block for setting digital output pins (`digitalOut`).
- Implemented the corresponding handler in Python to manage digital output actions.
- Updated dummy, GPIO, and real hardware interfaces to support digital output functionality.
- Modified the workspace configuration to include the new digital output block in the Blockly environment.
- Added potential enhancements to the README for future improvements.
a2nr