Added tests for control menu

Changes:
    Added suite and basic test case for following pages under control menu:
        - Power Usage
        - Reboot BMC
        - Server LED
        - Server power operations

Change-Id: I625bdbf1ad71fb989341368fe38b4d66db3006da
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/gui/data/resource_variables.py b/gui/data/resource_variables.py
index 3a61268..c4e4c52 100644
--- a/gui/data/resource_variables.py
+++ b/gui/data/resource_variables.py
@@ -124,3 +124,10 @@
     # New GUI variables
     xpath_login_button = "//button[@type='submit']"
     xpath_logout_button = "//button[@id='app-header-logout']"
+
+    # xpath for control menu
+    xpath_control_menu = "//button[@aria-controls='control-menu']"
+    xpath_manage_power_usage_sub_menu = "//a[@href='#/control/manage-power-usage']"
+    xpath_reboot_bmc_sub_menu = "//a[@href='#/control/reboot-bmc']"
+    xpath_server_led_sub_menu = "//a[@href='#/control/server-led']"
+    xpath_server_power_operations_sub_menu = "//a[@href='#/control/server-power-operations']"