GitLab

* feat(hwcdc): fix delay

Fixes delay when CDC is disconnected. At this time is only fixes it when USB cable is unplugged.

* feat(hwcdc): fix delay

fixes delay when CDC is not connected. It was only considering when the USB cable was not plugged.

* feat(hwcdc): add 2 methods

Adds 2 new methods:
- isPlugged() will return true when USB cable is plugged, false otherwise.
- isConnected() will return true when USB CDC is connected to a application in the USB Host side and communication is stablished.

* feat(hwcdc): adjusts APIs

Fixes the example to use the new added APIs for checking if USB cable is plugged and for checking if CDC is connected.

* fixes api declaration

* fixes API declaration