feat request: add temperature based calibration

First of all, I want to express my appreciation for the fantastic project! I use Sirilic regularly, and it has significantly improved my image processing workflow.

I have a feature request that I believe could enhance the software even further. Last night, while imaging an object, the temperature fluctuated several degrees. When processing the images, I realized it would be beneficial to use different dark frames based on their temperature to calibrate light frames with varying temperatures.

Currently, I can achieve this by creating multiple sessions for the same night based on temperature ranges. However, it would be extremely useful if Sirilic had an option to create subsessions with different temperatures, allowing the use of corresponding dark frames while using the same offset/bias and flats. An option to define temperature ranges could help to keep the number of subsession under control (e.g. make subsessions only for 5 degree steps).

Moreover, in the future, it would be amazing if this process could be automated by reading temperature data from the image files and matching them with the appropriate darks.

What do you think about this idea?

Thank you for considering my suggestion, and keep up the excellent work!