Conan package test added (#161).

test_package/CMakeLists.txt

 cmake_minimum_required(VERSION 3.11)
 project(PackageTest CXX)
 
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+
 include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
 conan_basic_setup()
 

test_package/example.cpp

 #include <iostream>
-#include "hello.h"
+#include <scope.h>
 
-int main() {
-    hello();
+int main()
+{
+    sr::scope_exit se{[]{}};
+    sr::scope_fail sf{[]{}};
+    sr::scope_success ss{[]{}};
+    sr::unique_resource ur{3, [](auto x){}};
+
+    return 0;
 }