Add Dev Command

src/main/kotlin/commands/dev/DevCommand.kt

@@ -185,21 +185,18 @@ class DevCommand : CliktCommand("dev") {
         ).directory(serverDir).start()
 
         val input = launch {
-            val reader = process.inputReader()
             while (process.isAlive) {
-                reader.readLine()?.let { echo(it) }
+                process.inputStream.transferTo(System.out)
             }
         }
         val error = launch {
-            val reader = process.errorReader()
             while (process.isAlive) {
-                reader.readLine()?.let { echo(it) }
+                process.errorStream.transferTo(System.err)
             }
         }
         val console = launch {
-            val write = process.outputStream.writer()
             while (process.isAlive) {
-                readlnOrNull()?.let { write.write(it + "\n") }
+                System.`in`.transferTo(process.outputStream)
             }
         }
         process.waitFor()