renaming and correcting get random sample request and response

Author: masseyke

…es/get_sample/GetRandomSamplesRequest.ts …ces/get_sample/GetRandomSampleRequest.tsspecification/indices/get_sample/GetRandomSamplesRequest.ts renamed to specification/indices/get_sample/GetRandomSampleRequest.ts specification/indices/get_sample/GetRandomSamplesRequest.ts renamed to specification/indices/get_sample/GetRandomSampleRequest.ts

@@ -30,7 +30,7 @@ import { RequestBase } from '@_types/Base'
 export interface Request extends RequestBase {
   urls: [
     {
-      path: '{index}/_data_stream'
+      path: '{index}/_sample'
       methods: ['GET']
     }
   ]