RPICAM2DNG for RaspberryPiHqCamera is broken

[RostakaGmfun]

The latest code expects the "fmt" dictionary to be present in camera's "model", while it is a string, hence the below AttributeError is raised:

 File "/project/PiDNG/src/pidng/core.py", line 120, in convert
    unpacked = self.__unpack_pixels__(image)
  File "/project/PiDNG/src/pidng/core.py", line 173, in __unpack_pixels__
    if "CSI2P" in self.model.fmt.get("format", ""):
AttributeError: 'RaspberryPiHqCamera' object has no attribute 'fmt'

[Tschucker]

Seeing the same error, looks like the format was changed to accommodate the newer picamera2 but not backward compatible...

[schoolpost]

Hello,

I can't commit to an exact timeframe, but I will try to address this soon.

[mcnalu]

I submitted Pull request #74 to fix this.