Add new prim (#75)

Author: dmirgaleev

Netezos/Encoding/Micheline/Abstract/PrimType.cs

@@ -164,6 +164,8 @@ public enum PrimType : byte
         BYTES,
         NAT,
         Ticket,
-        IS_IMPLICIT_ACCOUNT
+        IS_IMPLICIT_ACCOUNT,
+        GET_ADDRESS_INDEX,
+        INDEX_ADDRESS
     }
 }

Netezos/Encoding/Micheline/Serialization/PrimTypeConverter.cs

@@ -166,6 +166,8 @@ public class PrimTypeConverter : JsonConverter<PrimType>
             "NAT" => PrimType.NAT,
             "Ticket" => PrimType.Ticket,
             "IS_IMPLICIT_ACCOUNT" => PrimType.IS_IMPLICIT_ACCOUNT,
+            "GET_ADDRESS_INDEX" => PrimType.GET_ADDRESS_INDEX,
+            "INDEX_ADDRESS" => PrimType.INDEX_ADDRESS,
             var value => throw new FormatException($"Invalid prim: {value}")
         };