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/docker_build.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+#
+
+# 'manual' way of building. I cannot get CMake to work to build in a container.
+
+g++ --std=c++14 \
+    -DIXWEBSOCKET_USE_TLS \
+    -g \
+    ../ixwebsocket/IXEventFd.cpp \
+    ../ixwebsocket/IXSocket.cpp \
+    ../ixwebsocket/IXSocketServer.cpp \
+    ../ixwebsocket/IXSocketConnect.cpp \
+    ../ixwebsocket/IXDNSLookup.cpp \
+    ../ixwebsocket/IXCancellationRequest.cpp \
+    ../ixwebsocket/IXWebSocket.cpp \
+    ../ixwebsocket/IXWebSocketServer.cpp \
+    ../ixwebsocket/IXWebSocketTransport.cpp \
+    ../ixwebsocket/IXWebSocketHandshake.cpp \
+    ../ixwebsocket/IXWebSocketPerMessageDeflate.cpp \
+    ../ixwebsocket/IXWebSocketPerMessageDeflateCodec.cpp \
+    ../ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp \
+    ../ixwebsocket/IXSocketOpenSSL.cpp \
+    ../ixwebsocket/linux/IXSetThreadName_linux.cpp \
+    ../third_party/jsoncpp/jsoncpp.cpp \
+    ixcrypto/IXBase64.cpp \
+    ixcrypto/IXHash.cpp \
+    ixcrypto/IXUuid.cpp \
+    ws_transfer.cpp \
+    ws_send.cpp \
+    ws_receive.cpp \
+    ws.cpp \
+    -I . \
+    -I .. \
+    -I ../third_party \
+    -o ws \
+    -lcrypto -lssl -lz -lpthread