make report results ltr to work with SlickGrid (#2603)

* make report results ltr to work with SlickGrid

* Update report-rtl.css

frappe/public/build.json

@@ -55,7 +55,8 @@
 	],
 	"css/frappe-rtl.css": [
 		"public/css/bootstrap-rtl.css",
-		"public/css/desk-rtl.css"
+		"public/css/desk-rtl.css",
+		"public/css/report-rtl.css"
 	],
 	"js/libs.min.js": [
 		"public/js/lib/awesomplete/awesomplete.min.js",

frappe/public/css/report-rtl.css

@@ -0,0 +1,3 @@
+.grid-report {
+  direction: ltr;
+}