Workaround for running OpenAPI tests on Windows

Author: bkoelman

.gitattributes

@@ -0,0 +1,5 @@
+# When running OpenAPI tests, these committed files are downloaded and written to disk (so we'll know when something changes).
+# On Windows, these text files are auto-converted to crlf on fetch, while the written downloaded files use lf line endings.
+# Therefore, running the tests on Windows creates local changes. Staging them auto-converts back to crlf, which undoes the changes.
+# To avoid this annoyance, the next line opts out of the auto-conversion and forces to lf.
+swagger.g.json text eol=lf