Added test use case for server configuration menu pages

Testcases added:
    - Verify_Navigation_To_Date_And_Time_Settings_Page
    - Verify_Navigation_To_Network_Settings_Page
    - Verify_Existence_Of_All_Sections_In_Network_Settings_Page
    - Verify_Existence_Of_All_Buttons_In_Network_Settings_Page
    - Verify_Navigation_To_Firmware_Page
    - Verify_Existence_Of_All_Sections_In_Firmware_Page
    - Verify_Existence_Of_All_Buttons_In_Firmware_Page

Change-Id: Ib46179440e6fbb1ef5f725c8418fa4b28bea651b
Signed-off-by: Anusha Dathatri <adathatr@in.ibm.com>
diff --git a/gui/data/resource_variables.py b/gui/data/resource_variables.py
index bf60e3d..f85dc9e 100644
--- a/gui/data/resource_variables.py
+++ b/gui/data/resource_variables.py
@@ -154,6 +154,7 @@
     xpath_server_configuration = "//button[@aria-controls='configuration-menu']"
     xpath_select_network_settings = "//a[@href='#/configuration/network-settings']"
     xpath_date_time_settings_sub_menu = "//a[@href='#/configuration/date-time-settings']"
+    xpath_firmware_update_sub_menu = "//a[@href='#/configuration/firmware']"
 
     # xpath for access control menu
     xpath_access_control_menu = "//*[@data-test-id='nav-button-accessControl']"