* Adding GpioPin

* adjusting based on PR feedback

* Adjusting to have natively drivers.

* make methods virtual

* adding Toggle to System.Device drivers

* Board and Mcp23xxx adjustments

* adding FT4222, FT232H and Pcx857x

* adding Arduino and Seasaw

* adjsting file encoding after conflict merge

* Adding missing Toggle implementation in Arduino native

* Adjusting test for new pattern with GpioPin

* adjusting PR feedback

* typo in test

* fixing nit

* fixing test

* fixing test

* Adding FT232H, adjusting FT4222 and related samples

* adding category file

* adjusting nit

* fixing broken name in sample

* Adjusting based on PR feedback

* Adjusting samples and on PR feedbacks

* cleaning board definition

* Derive FtDevice from Board

Functionally, there should be no change.

* Update FT4222 to derive from Board

* Fix usages in examples

* Add exception in case of invalid bus Id

* Adjusting GPIO initialization when used alone

* Fixing project configurations caused by incorrect merge
Co-authored-by: NPatrick Grawehr <patrick.grawehr@leica-geosystems.com>
Co-authored-by: NJose Perez Rodriguez <joperezr@microsoft.com>