- Removed the shell task handle from app.c as it is no longer needed.
- Moved the shell task creation to shell_port.c with updated parameters.
- Ensured the shell task is created with appropriate stack size and priority.
- Introduced lvm.h for Lua virtual machine definitions, including functions for type conversion, fast table access, and integer operations.
- Implemented lzio.c and lzio.h for buffered stream handling, providing functionalities for reading from streams and managing buffers.
- Added necessary macros and function declarations to support efficient stream operations and memory management.