Clean up some names (rename classes, methods, files)

* ConvenienceClasses.h/.inl/.cpp -> ConvenienceApiClasses.h/.inl/.cpp
  * IObjectProxy class -> IProxy
  * Interfaces class -> AdaptorInterfaces
  * Interfaces.h -> split into AdaptorInterfaces.h and ProxyInterfaces.h
  * createObjectProxy() method -> createProxy()

test/perftests/perftests-proxy.h

@@ -0,0 +1,49 @@
+
+/*
+ * This file was automatically generated by sdbus-c++-xml2cpp; DO NOT EDIT!
+ */
+
+#ifndef __sdbuscpp__perftest_proxy_h__proxy__H__
+#define __sdbuscpp__perftest_proxy_h__proxy__H__
+
+#include <sdbus-c++/sdbus-c++.h>
+#include <string>
+#include <tuple>
+
+namespace org {
+namespace sdbuscpp {
+
+class perftests_proxy
+{
+public:
+    static constexpr const char* interfaceName = "org.sdbuscpp.perftests";
+
+protected:
+    perftests_proxy(sdbus::IProxy& proxy)
+        : proxy_(proxy)
+    {
+        proxy_.uponSignal("dataSignal").onInterface(interfaceName).call([this](const std::string& data){ this->onDataSignal(data); });
+    }
+
+    virtual void onDataSignal(const std::string& data) = 0;
+
+public:
+    void sendDataSignals(const uint32_t& numberOfSignals, const uint32_t& signalMsgSize)
+    {
+        proxy_.callMethod("sendDataSignals").onInterface(interfaceName).withArguments(numberOfSignals, signalMsgSize);
+    }
+
+    std::string concatenateTwoStrings(const std::string& string1, const std::string& string2)
+    {
+        std::string result;
+        proxy_.callMethod("concatenateTwoStrings").onInterface(interfaceName).withArguments(string1, string2).storeResultsTo(result);
+        return result;
+    }
+
+private:
+    sdbus::IProxy& proxy_;
+};
+
+}} // namespaces
+
+#endif