Completion of first prototype version

See merge request !1

* Added an USB 3 superspeed cabable switch to switch the SS lines to the
right side of the USB Type C recepacle, otherwise the stab wire would
cause interferances
* Routed the SS diff pairs to the switch, swapped some positive and
negative wires of the pairs
* Rerouted the highspeed pair and started to modifiy the connections to
the connectors (VCC, GND)

* Switched to an managed libraries (needed to proberly manage the 3D
models), so the lib is no longer part of this repo
* Added 3D models to every part

* Added support for the ability to use the dongle as an UFP (upstream
facing port), so the dongle operates as a power source
* Added the ability to also snap off the top section
* Cleaned up Silkscreen

Moved to the TPS62175DQCR Buck Converter from TI.
This IC doesn't require so high external C and L values,
and it should also perform more reliable.

* Cleaned up the silkscreen so all names a readable
* Moved the USB Type C CC Pull Down R to the Bottom Layer that they dont
interfier with the Type C Connector
* Length matched each trace segment of the differential USB signals

Added a Header to debug the STM32 micro using a SWD Debugger like the
ST-Link V2 on the NUCLEO Board

* Made the STM32 section able to snap off
* Added optional Pulldown Resistors on both CC Pins

* Finished the Step Down Converter (Schematic and routing)
* Added and connected test points
* Added Screw Terminal to connect a laptop cable
* Connected Micro pins

* Updated the STM32G071 Package to one that features the PD Pins
* Added the Step Down DCDC Converter that transforms the VBUS Volatage
of the USB Type C Connector to 3.3V to power the micro

* Added USB A and C Parts
* Added STM32
* Finished Boardoutline
* Finished USB Routing