add bunch of new java APIs: mostly stubs or copied from AOSP

Many of these classes are only needed to be subclassed by androidx
support library, which is used in many android apps

src/api-impl/android/view/ViewConfiguration.java

@@ -0,0 +1,34 @@
+package android.view;
+
+import android.content.Context;
+
+public class ViewConfiguration {
+	
+	public static ViewConfiguration get(Context context) {
+		return new ViewConfiguration();
+	}
+
+	public int getScaledTouchSlop() {
+		return 0;
+	}
+
+	public int getScaledMaximumFlingVelocity() {
+		return 0;
+	}
+
+	public int getScaledMinimumFlingVelocity() {
+		return 0;
+	}
+
+	public static int getTapTimeout() {
+		return 0;
+	}
+
+	public static int getLongPressTimeout() {
+		return 0;
+	}
+
+	public int getScaledPagingTouchSlop(){
+		return 0;
+	}
+}