Added commons project

main/commons/src/main/java/org/cryptomator/common/UncheckedInterruptedException.java

@@ -0,0 +1,14 @@
+package org.cryptomator.common;
+
+public class UncheckedInterruptedException extends RuntimeException {
+
+	public UncheckedInterruptedException(InterruptedException e) {
+		super(e);
+	}
+
+	@Override
+	public InterruptedException getCause() {
+		return (InterruptedException) super.getCause();
+	}
+
+}