Use of `tcode = l` in Camera on macOS fails

[onekiloparsec]

Hello,

I am reading an image from a Zwo ASI6200 MM Pro through an INDIGO Server running on my MacBookPro (M3), and using the Alpaca Agent for interacting with the camera.

The reading of the imagearray fails, because the tcode detected is l (ImageArrayElementTypes.Int32.value in the Camera class, line 2421), which has a length of 8 on my Mac and not 4.

Given the byte length (244685952), the data_start is not a multiple of it, and the reading crashes.

I am not entirely familiar with these details, but it seems a tcode = 'i' instead of l would make the thing portable on both Windows and Linux/macOS (according to ChatGPT...).

I'll test it on a fork, and send a PR.