Merge branch 'core/rewrite-it-all-again-lmao' into 'master'

unified

See merge request starkingdoms.tk/starkingdoms.tk!5

replication experiment

mining button

planets appear on the client again, also new SpawnPlanet packet

please lord clippy

network refactor

format

networking refactor

start render refactor

chassis change merge

chassis

refactor assets

networking cleanup

more cleanup

cargo fmt

cargo fix

asset system cleanup

asset system cleanup

asset system platformification

sprites work