Attempt to support invites, working in progress

src/main/groovy/io/kamax/mxisd/ThreePid.java

@@ -0,0 +1,22 @@
+package io.kamax.mxisd;
+
+// FIXME this should be in matrix-java-sdk
+public class ThreePid {
+
+    private String medium;
+    private String address;
+
+    public ThreePid(String medium, String address) {
+        this.medium = medium;
+        this.address = address;
+    }
+
+    public String getMedium() {
+        return medium;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+}