Move from java/ to kotlin/ directory

Android 12 dynamic color usage on login screen

app/src/main/kotlin/com/meloda/fast/concurrent/LowThread.kt

@@ -0,0 +1,12 @@
+package com.meloda.fast.concurrent
+
+import android.os.Process
+
+class LowThread(runnable: Runnable?) : Thread(runnable) {
+
+    override fun run() {
+        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND)
+        super.run()
+    }
+
+}