Updates .gitignore and adds an Avro generated Java source file

This file wasn't committed due to the wrongly configured .gitignore

Author: liancheng

.gitignore

@@ -74,4 +74,4 @@ metastore/
 warehouse/
 TempStatsStore/
 sql/hive-thriftserver/test_warehouses
-sql/core/src/test/gen-java/
+sql/core/src/test/gen-java/org/apache/spark/sql/parquet/test/thrift

sql/core/src/test/gen-java/org/apache/spark/sql/parquet/test/avro/Suit.java

@@ -0,0 +1,13 @@
+/**
+ * Autogenerated by Avro
+ * 
+ * DO NOT EDIT DIRECTLY
+ */
+package org.apache.spark.sql.parquet.test.avro;  
+@SuppressWarnings("all")
+@org.apache.avro.specific.AvroGenerated
+public enum Suit { 
+  SPADES, HEARTS, DIAMONDS, CLUBS  ;
+  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"enum\",\"name\":\"Suit\",\"namespace\":\"org.apache.spark.sql.parquet.test.avro\",\"symbols\":[\"SPADES\",\"HEARTS\",\"DIAMONDS\",\"CLUBS\"]}");
+  public static org.apache.avro.Schema getClassSchema() { return SCHEMA$; }
+}