Implement Light Pollution module

[Alex-developer]

Discussed in #82

^{Originally posted by effgarces February 4, 2024}
I'm trying to implement jbeale script (https://forums.raspberrypi.com/viewtopic.php?p=2096715#p2085037) for removing light polution in a module, but after trying multiple approaches I can never get it to apply. The sh script works perfectly, so I think that the problem lies in the module. For testing I simply duplicated the allsky_script.py to pass on the currentimage as parameter for the script. I'm hoping that someone can give an insight at what I'm doing wrong

lightpollution.sh
allsky_lightpollution.py