Moment prefixes added

Author: Rúben André Barreiro

src/main/java/org/quisl/framework/java/circuits/utils/common/MomentPrefixes.java

@@ -0,0 +1,23 @@
+package org.quisl.framework.java.circuits.utils.common;
+
+public enum MomentPrefixes {
+
+    CLASSICAL_MOMENT("Classical"),
+    QUANTUM_MOMENT("Quantum");
+
+    private final String momentPrefix;
+
+
+    MomentPrefixes(String momentPrefix) {
+
+        this.momentPrefix = momentPrefix;
+
+    }
+
+    public String getMomentPrefix() {
+
+        return this.momentPrefix;
+
+    }
+
+}