Merge pull request #1156 from NREL/lf_endings_json

Add json to list of definitely text files

.gitattributes

@@ -28,6 +28,7 @@ build_*/* linguist_generated=true
 *.h text
 *.csv text
 *.lk text
+*.json text
 
 # Ensure those won't be messed up with
 *.jpg binary