Update love versions through 11.5

[jfhbrook]

An attempt to close #23 by adding love versions 11.2-11.5.

I'm not sure how to validate any of the versions listed - open to suggestions. But the changelogs for Love don't suggest any major updates in the build here.

I haven't run the tests - yet. I'm still kinda struggling to figure out how to set up environments in a sensible way. But I don't think any tests depend on the structure of this object, so felt OK pushing the PR.

See also https://github.com/Alloyed/loadconf/pull/6, which updates the stable version of love to 11.5.