added missing store, doc_values, compress and compress_threshold properties for binary mapping

Author: Mpdreamz

Diff for: src/Nest/Domain/Mapping/Descriptors/BinaryMappingDescriptor.cs

@@ -26,6 +26,30 @@ public BinaryMappingDescriptor<T> IndexName(string indexName)
 			return this;
 		}
 
+		public BinaryMappingDescriptor<T> DocValues(bool docValues = true)
+		{
+			this._Mapping.DocValues = docValues;
+			return this;
+		}
+
+		public BinaryMappingDescriptor<T> Store(bool store = true)
+		{
+			this._Mapping.Store = store;
+			return this;
+		}
+
+		public BinaryMappingDescriptor<T> Compress(bool compress = true )
+		{
+			this._Mapping.Compress = compress;
+			return this;
+		}
+
+		public BinaryMappingDescriptor<T> CompressThreshold(string compressThreshold)
+		{
+			this._Mapping.CompressThreshold = compressThreshold;
+			return this;
+		}
+
 		public BinaryMappingDescriptor<T> CopyTo(params string[] fields)
 		{
 			this._Mapping.CopyTo = fields.Select(f => (PropertyPathMarker)f);

Diff for: src/Nest/Domain/Mapping/Types/BinaryMapping.cs

@@ -25,6 +25,18 @@ public class BinaryMapping : IElasticType, IElasticCoreType
 		[JsonProperty("index_name")]
 		public string IndexName { get; set; }
 
+		[JsonProperty("doc_values")]
+		public bool? DocValues { get; set; }
+
+		[JsonProperty("store")]
+		public bool? Store { get; set; }
+
+		[JsonProperty("compress")]
+		public bool? Compress { get; set; }
+
+		[JsonProperty("compress_threshold")]
+		public string CompressThreshold { get; set; }
+
 		[JsonProperty("copy_to")]
 		public IEnumerable<PropertyPathMarker> CopyTo { get; set; }
 	}