Fix #2513 add TermVector option to Text attribute (#2514)

Author: gmarz

src/Nest/Mapping/Types/Core/Text/TextAttribute.cs

@@ -35,6 +35,7 @@ public class TextAttribute : ElasticsearchCorePropertyAttributeBase, ITextProper
 		public string SearchAnalyzer { get { return Self.SearchAnalyzer; } set { Self.SearchAnalyzer = value; } }
 		public string SearchQuoteAnalyzer { get { return Self.SearchQuoteAnalyzer; } set { Self.SearchQuoteAnalyzer = value; } }
 		public bool Norms { get { return Self.Norms.GetValueOrDefault(true); } set { Self.Norms = value; } }
+		public TermVectorOption TermVector { get { return Self.TermVector.GetValueOrDefault();  } set { Self.TermVector = value; } }
 
 		public TextAttribute() : base("text") { }
 	}

src/Tests/Mapping/Types/Core/Text/TextAttributeTests.cs

@@ -18,7 +18,8 @@ public class TextTest
 			SearchQuoteAnalyzer = "mysearchquoteanalyzer",
 			Similarity = "classic",
 			Store = true,
-			Norms = false)]
+			Norms = false,
+			TermVector = TermVectorOption.WithPositionsOffsets)]
 		public string Full { get; set; }
 
 		[Text]
@@ -48,7 +49,8 @@ public class TextAttributeTests : AttributeTestsBase<TextTest>
 					search_quote_analyzer = "mysearchquoteanalyzer",
 					similarity = "classic",
 					store = true,
-					norms = false
+					norms = false,
+					term_vector = "with_positions_offsets"
 				},
 				minimal = new
 				{

src/Tests/Mapping/Types/Core/Text/TextPropertyTests.cs

@@ -45,7 +45,8 @@ public TextPropertyTests(WritableCluster cluster, EndpointUsage usage) : base(cl
 					search_quote_analyzer = "standard",
 					similarity = "classic",
 					store = true,
-					norms = false
+					norms = false,
+					term_vector = "with_positions_offsets"
 				}
 			}
 		};
@@ -81,6 +82,7 @@ public TextPropertyTests(WritableCluster cluster, EndpointUsage usage) : base(cl
 					.Similarity(SimilarityOption.Classic)
 					.Store()
 					.Norms(false)
+					.TermVector(TermVectorOption.WithPositionsOffsets)
 				);
 
 
@@ -115,7 +117,8 @@ public TextPropertyTests(WritableCluster cluster, EndpointUsage usage) : base(cl
 					SearchQuoteAnalyzer = "standard",
 					Similarity = SimilarityOption.Classic,
 					Store = true,
-					Norms = false
+					Norms = false,
+					TermVector = TermVectorOption.WithPositionsOffsets
 				}
 			}
 		};