Move java source files to gradle project layout and delete obsolete files

src/main/java/de/hardcode/jxinput/directinput/DIButton.java

@@ -0,0 +1,55 @@
+//**********************************************************************************************
+//		(C) Copyright 2002 by Dipl. Phys. Joerg Plewe, HARDCODE Development
+//		All rights reserved. Copying, modification,
+//		distribution or publication without the prior written
+//		consent of the author is prohibited.
+//
+//	Created on 27. Dezember 2001, 00:14
+//**********************************************************************************************
+package de.hardcode.jxinput.directinput;
+
+import de.hardcode.jxinput.Button;
+
+
+/**
+ *
+ * @author  Herkules
+ */
+class DIButton implements Button
+{
+    private final int mDeviceIdx;    
+	private final int mIdx;
+
+	/** 
+	 * Creates a new instance of DIButton.
+	 */
+	DIButton( int devidx, int idx )	
+	{
+        mDeviceIdx = devidx;
+		mIdx = idx;
+	}
+	
+	public String getName()
+	{
+		return DirectInputDriver.getButtonName( mDeviceIdx, mIdx );
+	}
+
+	/**
+	 * Denote wether this feature has changed beyond it's resolution since it got last
+	 * updated.
+	 */
+	public boolean hasChanged()
+	{
+		return true;
+	}
+	
+	public int getType()
+	{
+		return DirectInputDriver.getButtonType( mDeviceIdx, mIdx );
+	}
+	
+	public boolean getState()
+	{
+		return DirectInputDriver.getButtonState( mDeviceIdx, mIdx );
+	}
+}