Added Packet_Device Library V1.0.4

[Pallob-Gain]

Packet_Device is a lightweight, event-driven communication protocol built on top of Arduino’s Stream interface.
It provides a secure, packet-based layer for transferring raw bytes between two devices over any underlying transport supported by the Stream API (e.g., UART, SPI, I²C/Wire, BluetoothSerial, etc.).

Conceptually, it follows a layered design:

Stream acts as the transport layer

Packet_Device acts as the application protocol layer, handling packet framing, CRC-based data integrity, and event-driven dispatch.

Features

Works over any Stream transport

CRC-16 integrity checks for secure data transfer

Event-based architecture for efficient data handling

Supports raw byte streams, arrays, and structured data

Flexible for command/control and bulk data transfer

Compatible with a Node.js client for PC ↔ MCU communication

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/Pallob-Gain/packet_device:

Linting library in packet_device
INFO: No header file found matching library name (Packet_Device.h). Best practices are for primary header filename to   
      match library name.                                                                                               
      See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format            
      (Rule LS008)                                                                                                      
WARNING: No license file found.                                                                                                                 
         See:                                                                                                                                   
         https://docs.github.com/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/licensing-a-repository
         (Rule LD002)                                                                                                                           

Linter results for project: 0 ERRORS, 1 WARNINGS

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Linting sketch in packet_device/examples/ESP32_Serial_PC

Linter results for project: no errors or warnings

-------------------

Linter results for projects: 0 ERRORS, 1 WARNINGS

[github-actions]

Your submission has now been accepted! Thanks for your contribution to the Arduino Library Manager index.

The library(s) will be available for installation via Library Manager within a day's time.

You can check the logs from the Library Manager indexer for your library(s) here:
http://downloads.arduino.cc/libraries/logs/github.com/Pallob-Gain/packet_device/

[Pallob-Gain]

Updated with the changes