Add CSS diff support

Ballerina.gitattributes

@@ -7,7 +7,7 @@
 #
 # These files are text and should be normalized (Convert crlf => lf)
 *.bal           text
-*.css           text
+*.css           text diff=css
 *.df            text
 *.htm           text
 *.html          text
@@ -33,4 +33,3 @@
 *.jpeg          binary
 *.png           binary
 *.so            binary
-

Drupal.gitattributes

@@ -19,7 +19,7 @@
 # Auto-detect text files, ensure they use LF.
 * text=auto eol=lf
 
-*.css     text eol=lf whitespace=blank-at-eol,-blank-at-eof,-space-before-tab,tab-in-indent,tabwidth=2
+*.css     text eol=lf whitespace=blank-at-eol,-blank-at-eof,-space-before-tab,tab-in-indent,tabwidth=2 diff=css
 *.engine  text eol=lf whitespace=blank-at-eol,-blank-at-eof,-space-before-tab,tab-in-indent,tabwidth=2 diff=php
 *.html    text eol=lf whitespace=blank-at-eol,-blank-at-eof,-space-before-tab,tab-in-indent,tabwidth=2 diff=html
 *.inc     text eol=lf whitespace=blank-at-eol,-blank-at-eof,-space-before-tab,tab-in-indent,tabwidth=2 diff=php

Java.gitattributes

@@ -6,7 +6,7 @@
 # The above will handle all files NOT found below
 #
 # These files are text and should be normalized (Convert crlf => lf)
-*.css           text
+*.css           text diff=css
 *.df            text
 *.htm           text
 *.html          text
@@ -38,4 +38,3 @@
 *.png           binary
 *.so            binary
 *.war           binary
-

Lua.gitattributes

@@ -7,4 +7,4 @@
 # Luadoc output
 # =============
 *.html      text
-*.css       text
+*.css       text diff=css

Servoy.gitattributes

@@ -7,5 +7,5 @@
 *.obj -text
 *.dbi -text
 *.sec -text
-*.css -text
-*.js eol=lf
+*.css -text diff=css
+*.js eol=lf