Git attributes file added

Author: esemionov

.gitattributes

@@ -0,0 +1,21 @@
+# by default use heuristics
+*		text=auto
+
+# standard text files
+*.java		text
+*.properties	text
+*.gradle	text
+*.cfg		text
+*.xml		text
+*.json		text
+
+# binary file
+*.png		-text
+*.jpg		-text
+*.pdf		-text
+
+# special text files
+# NB: we must undo effect of "* text=auto" here
+*.bat		!text eol=crlf
+*.sh		!text eol=lf
+gradlew		!text eof=lf