Convert AWs on Forge to ATs in RemapJarTask (#24)

* Aw2At

* Hook Aw2At up to remapJar

* Checkstyle

* Checkstyle, part II

* Now it's Spotless' turn

* Remap the resulting AT

* you see, this is why mojmap is bad

* Inject(method = "<init>")

* Use file systems because ZipUtil is bad

* Make it false by default

* Add integ tests for aw2at

* spotless please

* fix year

src/main/java/net/fabricmc/loom/LoomRepositoryPlugin.java

@@ -35,7 +35,6 @@ import org.gradle.api.plugins.PluginAware;
 import org.jetbrains.annotations.NotNull;
 
 import net.fabricmc.loom.extension.LoomFiles;
-
 import net.fabricmc.loom.util.Constants;
 import net.fabricmc.loom.util.MirrorUtil;