Make .deb release

[neph1]

I'd like to try building a .deb package for the next release. Why? Why not. Ref: https://github.com/marketplace/actions/build-deb-action

[MeFisto94]

Hint: The SDK already had a deb build, here: https://github.com/jMonkeyEngine/sdk/tree/master/debscripts and https://github.com/jMonkeyEngine/sdk/tree/master/ant-lib https://github.com/jMonkeyEngine/sdk/blob/master/build.xml#L14

[peedeeboy]

How about a Flatpak to be published on Flathub?

[neph1]

I'm all for increasing the availability of the SDK. If we can automate things, all the better. My plan for the deb was first and foremost just to create it, then as a possible future step, set it up for distribution.