RANGER-2852: Add .gitattributes file to prevent CRLF and LF mismatche…

…s for source and text files

.gitattributes

@@ -0,0 +1,16 @@
+# Auto detect text files and perform LF normalization
+*        text=auto
+
+*.java   text diff=java eol=lf
+*.html   text diff=html eol=lf
+*.py     text diff=python eol=lf
+*.css    text eol=lf
+*.js     text eol=lf
+*.sql    text eol=lf
+*.sh     text eol=lf
+*.xml    text eol=lf
+*.txt    text eol=lf
+*.json   text eol=lf
+*.jsp    text eol=lf
+*.csv    text eol=lf
+*.properties    text eol=lf