Snapshots not working with DS-7608NI NVR

[H-SG]

I'm getting an issue with snapshots not working on my specific NVR (DS-7608NI-K2) with firmware V4. After some digging, it appears that this specific NVR uses a different URL for pictures than what is currently specified as highlighted below. The correct string should be /ISAPI/ContentMgmt/StreamingProxy/channels/${channelId}01/picture...

homebridge-hikvision/src/HikVisionCamera.ts

Line 100 in c73a6c1

}/ISAPI/Streaming/channels/${channelId}01/picture?videoResolutionWidth=720`,

I would do a pull request, but I don't know what this behaviour is like on other NVRs or if there is some check that can be run to chose the correct option based on the given NVR.