V4.6 Patch & Redot Support

Hey,  the code cleaning I did for V4.6 cleaned a little too well and I removed some stuff that shouldn't have been. It created issues with randomisation and triggers. I fixed it and updated the file, you should definitly redownload the V4.6 or you'll have issues (only the BuHSpawner.gd has to be replaced)

Also, as per user demand, the last version of BulletUpHell now works on the last version of Redot Engine. So if you're a Redot user, you can use the plugin.