Update code import and documentation for resource file

Changes:
     - BuiltIn library import OperatingSystem should be
       placed before String
     - Missing documentation in suite

Tested:
    - NA

Change-Id: Ia87778f0131c1146a7bfd3d8b8323d97bd64998d
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/resource.robot b/lib/resource.robot
index 550774a..53ec1b8 100755
--- a/lib/resource.robot
+++ b/lib/resource.robot
@@ -1,8 +1,10 @@
 *** Settings ***
+Documentation     Base resource file variables used for all context
+...               in this repository.
 Library           Collections
+Library           OperatingSystem
 Library           String
 Library           RequestsLibrary
-Library           OperatingSystem
 Variables         ../data/variables.py
 
 *** Variables ***