Databit, stopbit and paraty implemented; Fix CH340 initialization;

[tiorac]

I was unable to access an Arduino. Finding out she needed to fix these items:

• Fix CH340 Initialization:

https://github.com/mik3y/usb-serial-for-android/commit/2a77ebf8b9d3c651632c3d2d18a2386c0fddb1d3

https://github.com/mik3y/usb-serial-for-android/blob/5bb8db02d5a6f2db32522ce602a6dd7d791de083/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Ch34xSerialDriver.java#L167

• Databit, stopbit and paraty:

https://github.com/mik3y/usb-serial-for-android/blob/5bb8db02d5a6f2db32522ce602a6dd7d791de083/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Ch34xSerialDriver.java#L236

• WriteHandshakeByte -> SetControlLines()

https://github.com/mik3y/usb-serial-for-android/blob/5bb8db02d5a6f2db32522ce602a6dd7d791de083/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Ch34xSerialDriver.java#L153

[anotherlab]

Thank you for the code changes