StarNet Star Removal

In Siril 1.4 the Starnet python script was introduced. This brings Starnt support in line with support for other third party AI models such as SyQon Starless, RC Astro StarXterminator etc. It also decouples any updates to the script from the core Siril release schedule.

The old built-in Starnet interface has therefore been removed. Scripts that previously used the starnet or seqstarnet commands should migrate to using pyscript StarNet.py instead. For use through the GUI, select the StarNet.py script from the list in Get Scripts and access it through the Scripts menu.