Fix auto-updater failing

- Implemented a new self-reload system, which will boot up a separate plugin to load ServerUtils back up again.

Common/build.gradle

@@ -4,8 +4,16 @@ archivesBaseName = rootProject.name + '-Common'
 
 repositories {
     mavenCentral()
+    flatDir { dirs 'src/main/resources' }
 }
 
 dependencies {
+    compileOnly name: 'ServerUtilsUpdater'
     compileOnly 'com.google.code.gson:gson:2.8.0'
 }
+
+shadowJar {
+    exclude 'net/frankheijden/serverutilsupdater/**'
+    exclude 'plugin.yml'
+    exclude 'bungee.yml'
+}