amend .gitattributes with loaddata test files

Author: elianddb

.gitattributes

@@ -1,12 +1,18 @@
-enginetest/testdata/test1.txt binary
-enginetest/testdata/test2.csv binary
-enginetest/testdata/test3.csv binary
-enginetest/testdata/test3backwards.csv binary
-enginetest/testdata/test4.txt binary
-enginetest/testdata/test5.txt binary
-enginetest/testdata/test6.csv binary
-enginetest/testdata/test7.txt binary
-enginetest/testdata/test8.txt binary
-enginetest/testdata/test9.txt binary
-enginetest/testdata/test10.txt binary
-enginetest/testdata/simple_json.txt binary
+enginetest/testdata/test1.txt binary
+enginetest/testdata/test2.csv binary
+enginetest/testdata/test3.csv binary
+enginetest/testdata/test3backwards.csv binary
+enginetest/testdata/test4.txt binary
+enginetest/testdata/test5.txt binary
+enginetest/testdata/test6.csv binary
+enginetest/testdata/test7.txt binary
+enginetest/testdata/test8.txt binary
+enginetest/testdata/test9.txt binary
+enginetest/testdata/test10.txt binary
+enginetest/testdata/simple_json.txt binary
+enginetest/testdata/loaddata_9969.dat binary
+enginetest/testdata/loaddata_escape.dat binary
+enginetest/testdata/loaddata_enclosed.dat binary
+enginetest/testdata/loaddata_single_quotes.dat binary
+enginetest/testdata/loaddata_nulls.dat binary
+enginetest/testdata/loaddata_mixed_escapes.dat binary