Reduce duplicate code (#18)

* Reduce duplicate code

* Fix gradle task name

* Revert name changes

* Revert action name

* Cleanup

* Revert to java 17

* Fix generation

* Cleanup

* Simplify code of DGU

* Remove unnecessary annotations

* Remove unused var

* Halt with error on error

* Remove unused mixins

* Update fabric loader

* Ignore success result

* Update gradle and use merged jar

* Implement new client and server merged environment for running fabric

* Set server run dir as asset dir

* More cleanup

* More cleanup 2

* More improvements

* Remove more duplicate code

* Use newer java methods

* More cleanup

* Remove SoundAccessors

* More cleanup

* Use java 21 for build

* Initial work on 1.20.5

* Cleanup a lot of stuff

* Do not generate mod jars to speed up builds

* Override merger on now open classes directly

* Use recommended approach

* Readd custom merger

* Working materials data generator

* Fix inconsistencies

* Fix collision order to be random

* Use LinkedHashMap for more reproducibility

* Fix imports

settings.gradle

@@ -1,33 +1,16 @@
-pluginManagement {
-    repositories {
-        maven {
-            name = 'Fabric'
-            url = 'https://maven.fabricmc.net/'
+plugins {
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '0.8.0'
+}
+
+dependencyResolutionManagement {
+    versionCatalogs {
+        libs {
+            version('fabric-loader', '0.15.10')
         }
-        gradlePluginPortal()
-    }
-    plugins {
-        id 'fabric-loom' version "1.4.5"
     }
 }
 
-dependencyResolutionManagement  {
-    repositories {
-        maven {
-            name = 'Fabric'
-            url = 'https://maven.fabricmc.net/'
-        }
-        maven {
-            name = "legacy-fabric"
-            url = "https://maven.legacyfabric.net"
-        }
-        maven {
-            name = "u9g"
-            url = "https://maven.u9g.dev"
-        }
-        mavenCentral()
-    }
-}
+include "common"
 
 [
         "1.7",
@@ -47,4 +30,5 @@ dependencyResolutionManagement  {
         "1.19.2",
         "1.20",
         "1.20.4",
+        "1.20.5",
 ].forEach { include it }