delete unused file, add credit for some sources

out/artifacts/bagel_jar/bagel.jar

res/ActorExtensionPack/Actor/Magnet/magnet_triggered_0.png

res/ActorExtensionPack/Actor/Magnet/magnet_triggered_1.png

res/ActorExtensionPack/Actor/Magnet/magnet_triggered_2.png

res/ActorExtensionPack/Actor/Magnet/magnet_untriggered_0.png

res/ActorExtensionPack/Actor/Magnet/magnet_untriggered_1.png

res/ActorExtensionPack/Actor/Magnet/magnet_untriggered_2.png

res/ActorExtensionPack/Actor/TeleportEffect/effect_0.png

res/ActorExtensionPack/Actor/TeleportEffect/effect_1.png

res/ActorExtensionPack/Actor/TeleportEffect/effect_2.png

res/ActorExtensionPack/Actor/TeleportEffect/effect_3.png

res/ActorExtensionPack/Extra/AnotherHat.png

res/ActorExtensionPack/Extra/CoolHat.png

res/ActorExtensionPack/Extra/SomeSword.png

res/ActorExtensionPack/Extra/m0.png

res/ActorExtensionPack/Extra/m1.png

res/ActorExtensionPack/Extra/m2.png

res/ActorExtensionPack/Extra/p0.png

res/ActorExtensionPack/Extra/p1.png

res/ActorExtensionPack/Extra/p2.png