Add runWorkDir property for setting a custom run task working directory

patches/server/Setup-Gradle-project.patch

@@ -109,9 +109,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +fun TaskContainer.registerRunTask(name: String, block: JavaExec.() -> Unit): TaskProvider<JavaExec> =
 +    register<JavaExec>(name) {
 +        group = "Paper"
-+        workingDir = rootProject.projectDir.resolve("run")
++        workingDir = layout.projectDirectory.dir(providers.gradleProperty("runWorkDir").orElse("run")).get().asFile
 +        doFirst {
-+            if (!workingDir.exists()) workingDir.mkdir()
++            workingDir.mkdirs()
 +        }
 +        standardInput = System.`in`
 +        args("--nogui")