YT-23616: Add ReadFile method RPC implementation

commit_hash:32904fe88304194b5acc75f5de589b2ce7f1dc50

yt/cpp/mapreduce/raw_client/raw_client.h

@@ -210,6 +210,7 @@ public:
         const TSkyShareTableOptions& options = {}) override;
 
     // Files
+
     std::unique_ptr<IInputStream> ReadFile(
         const TTransactionId& transactionId,
         const TRichYPath& path,