Add timeout to wikipedia enrichment to avoid breaking rate limits, add mock enrichment (#224)

* Add timeout for enrichment, refactor json deserialization

* Add location count to application options and as a cli arg

* Add mock enrichment process

tooling/pipeline/src/services/enrichment/wikipedia/wikipedia_service.cc

@@ -0,0 +1,12 @@
+/**
+ * @file services/wikipedia/wikipedia_service.cc
+ * @brief WikipediaService constructor implementation.
+ */
+
+#include "services/enrichment/wikipedia_service.h"
+
+#include <utility>
+
+WikipediaEnrichmentService::WikipediaEnrichmentService(
+    std::unique_ptr<WebClient> client)
+    : client_(std::move(client)) {}