Add open license test case

Signed-off-by: Yang Jiao <jiaoya@vmware.com>

tests/resources/Harbor-Pages/UserProfile.robot

@@ -43,3 +43,7 @@ Logout Harbor
     Retry Link Click  Log Out
     Sleep  2
     Wait Until Keyword Succeeds  5x  1  Retry Wait Until Page Contains Element  ${sign_in_title_xpath}
+
+View About
+    Retry Element Click  ${head_admin_xpath}
+    Retry Link Click  ${about_xpath}

tests/resources/Harbor-Pages/UserProfile_Elements.robot

@@ -26,3 +26,5 @@ ${change_password_confirm_btn_xpath}  xpath=//password-setting/clr-modal//button
 ${user_profile_confirm_btn_xpath}  xpath=//account-settings-modal/clr-modal//button[2]
 ${sign_in_title_xpath}  xpath=//sign-in//form//*[@class='title']
 ${account_settings_comments_xpath}  xpath=//*[@id='account_settings_comments']
+${about_xpath}  xpath=//clr-dropdown-menu//a[contains(.,'About')]
+${license_xpath}  xpath=//about-dialog//div//p//a[contains(.,'Open Source/Third Party License')]

tests/robot-cases/Group1-Nightly/Routing.robot

@@ -44,6 +44,7 @@ Test Case - Main Menu Routing
     FOR  ${key}  IN  @{routing.keys()}
         Retry Double Keywords When Error  Go To  ${HARBOR_URL}/${key}  Retry Wait Element  ${routing['${key}']}
     END
+    Close Browser
 
 Test Case - Project Tab Routing
     [Tags]  project_tab_routing
@@ -64,4 +65,16 @@ Test Case - Project Tab Routing
     ...  harbor/projects/1/configs=//project-detail//app-project-config//hbr-project-policy-config
     FOR  ${key}  IN  @{routing.keys()}
         Retry Double Keywords When Error  Go To  ${HARBOR_URL}/${key}  Retry Wait Element  ${routing['${key}']}
-    END
+    END
+    Close Browser
+
+Test Case - Open License Page
+    [Tags]  license_page
+    Init Chrome Driver
+    Sign In Harbor  ${HARBOR_URL}  ${HARBOR_ADMIN}  ${HARBOR_PASSWORD}
+    View About
+    Retry Link Click  ${license_xpath}
+    Sleep  3
+    Switch Window  locator=NEW
+    Retry Wait Until Page Contains  Apache License
+    Close Browser