some improvements

some improvements

added eventBridge notification resource spec

added eventBridge notification resource spec

added some helpers (retry, load_all_pages, key_maker)

added rate_limit to ApiResponse

added some helpers (retry, load_all_pages, key_maker)

added rate_limit to ApiResponse

added some helpers (retry, load_all_pages, key_maker)

added rate_limit to ApiResponse

Merge remote-tracking branch 'origin/master'

added catalog items (Catalog V2)

added listings-items & product_type_definitions