(#18) Added init.cpp for the lz4 sub-module

Added definition of pybind sub-module for containing the lz4
encapsulation.

src/papi/lz4/context.cpp

@@ -0,0 +1,12 @@
+#include "module.h"
+#include <lz4.h>
+
+using namespace lz4;
+
+context::context()
+{
+}
+
+context::~context()
+{
+}

src/papi/lz4/init.cpp

@@ -0,0 +1,8 @@
+#include "../cint.h"
+
+#include "module.h"
+
+static test_initializer modules([](py::module &m) {
+    auto lz4 = m.def_submodule("lz4");
+
+});

src/papi/lz4/module.h

@@ -0,0 +1,14 @@
+#ifndef __CINT_LZ4_MODULE__
+#define __CINT_LZ4_MODULE__
+
+#pragma once
+
+namespace lz4 {
+
+    class context {
+        context();
+        ~context();
+    };
+
+};
+#endif // __CINT_LZ4_MODULE__