Fixes for http-client-core (#2)

Author: apolukhin

configs/static_config.yaml

@@ -32,6 +32,7 @@ components_manager:
         testsuite-support: {}
 
         http-client:
+        http-client-core:
             fs-task-processor: fs-task-processor
         resources-cache:
             dir: /var/www/upastebin

src/main.cpp

@@ -19,6 +19,7 @@ int main(int argc, char* argv[]) {
   auto component_list = userver::components::MinimalServerComponentList()
                             .Append<userver::server::handlers::Ping>()
                             .Append<userver::components::TestsuiteSupport>()
+                            .Append<userver::components::HttpClientCore>()
                             .Append<userver::components::HttpClient>()
                             .Append<userver::server::handlers::TestsControl>();