✨FEATURE: Add Support for Software Serial

[Witty-Wizard]

Overview

Implement Software Serial support, this helps with boards that do not have UART peripheral or 8-bit boards that do not support non-conventional baud rates like in the case of SBus(10000 Bauds per second)

Tasks

• Implement a construction overload that accepts PIN as input
• Create a new SoftSerial object using those pins
• Check with existing hardware