Vanilla Coffee V0.0.4

this is a mostly functional MVP, there still needs to be some UI built, and a few other bits and bobs that could be added, but its "playable" go grab a weapon from the room on the left and then go outside and try to survive,

macos binaries are untested because i dont have apple hardware, is built in a docker container, macos build is also not built in release mode

What's Changed

• bevy 0.9 update, heron is no longer used, "more consistent code structure?" by @Hellzbellz123 in #2
• big_brain actually works. skeleton ai will probably be close to final for a slime enemy by @Hellzbellz123 in #3

+lots more that was untracked in git 😬
Full Changelog: v0.0.3-prerelease...v0.0.4-prerelease