Remove Arduino-specific code

[ClintonLang]

Story

I want to remove the Arduino-specific artifacts like Serial(), loop(), Setup()
So then I can compile the project without the Arduino compiler

Tasks

• Rewrite setup()
• Rewrite loop()
• Find C++ libraries for the equivalent of serial()

Acceptance Criteria

• Revised code should pass a c linter
• Revised code should be compilable by the winAVR toolchain