Feature/ws cli (#15)

* New command line tool for transfering files / still very beta.

* add readme

* use cli11 for argument parsing

* json -> msgpack

* stop using base64 and use binary which can be stored in message pack

ws/ixcrypto/IXHash.cpp

@@ -0,0 +1,22 @@
+/*
+ *  IXHash.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone. All rights reserved.
+ */
+
+#include "IXHash.h"
+
+namespace ix
+{
+    uint64_t djb2Hash(const std::vector<uint8_t>& data)
+    {
+        uint64_t hashAddress = 5381;
+
+        for (auto&& c : data)
+        {
+            hashAddress = ((hashAddress << 5) + hashAddress) + c;
+        }
+
+        return hashAddress;
+    }
+}