Add getter to retrieve version from mongoc_server_api_t

Author: alcaeus

src/libmongoc/src/mongoc/mongoc-server-api.c

@@ -109,3 +109,10 @@ mongoc_server_api_get_strict (const mongoc_server_api_t *api)
    BSON_ASSERT (api);
    return &api->strict;
 }
+
+mongoc_server_api_version_t
+mongoc_server_api_get_version (const mongoc_server_api_t *api)
+{
+   BSON_ASSERT (api);
+   return api->version;
+}

src/libmongoc/src/mongoc/mongoc-server-api.h

@@ -59,6 +59,9 @@ mongoc_server_api_get_deprecation_errors (const mongoc_server_api_t *api);
 MONGOC_EXPORT (const mongoc_optional_t *)
 mongoc_server_api_get_strict (const mongoc_server_api_t *api);
 
+MONGOC_EXPORT (mongoc_server_api_version_t)
+mongoc_server_api_get_version (const mongoc_server_api_t *api);
+
 BSON_END_DECLS
 
 #endif /* MONGOC_SERVER_API_H */