cmake compile fix (#18)

cmake/configcat-config.cmake.in

@@ -1,7 +1,7 @@
 include(CMakeFindDependencyMacro)
 @PACKAGE_INIT@
 
-find_package(cpr REQUIRED)
+find_package(CURL REQUIRED)
 find_package(nlohmann_json REQUIRED)
 find_package(unofficial-hash-library REQUIRED)
 find_package(semver REQUIRED)

samples/main.cpp

@@ -10,6 +10,9 @@ int main(int /*argc*/, char** /*argv*/) {
     // Use the default warning level to avoid too detailed logging in your application.
     auto logger = make_shared<ConsoleLogger>(LOG_LEVEL_INFO);
 
+    // Print the ConfigCat C++ SDK version.
+    cout << "ConfigCat C++ SDK version: " << configcat::version << endl;
+
     // Initialize the ConfigCatClient with an SDK Key.
     ConfigCatOptions options;
     options.logger = logger;

src/version.h

@@ -1,3 +1,3 @@
 #pragma once
 
-#define CONFIGCAT_VERSION "3.1.0"
+#define CONFIGCAT_VERSION "3.1.1"