Zabbix

.......... [DEV-2532] created Selenium test for testing data display in graphs and graph widgets

* commit 'a4671c152460532cff2d7469e06efecb8a1cd805':
  .......... [DEV-2529] implemented fixes according to review comments
  .......... [DEV-2532] removed unused variable
  .......... [DEV-2532] fixed waiting for graph to be loaded in kiosk mode in latest data view
  .......... [DEV-2532] changed wait in case of latest data graph before taking the screenshot in kiosk mode
  .......... [DEV-2532] fixed not submitting filter for all graphs in monitorinh hosts
  .......... [DEV-2532] refactored dashboard page selection and wait method
  .......... [DEV-2532] added necessary code to ensure that all graphs are loaded before taking the screenshot
  .......... [DEV-2532] added scenario for graph widgets and moved data source to on Before annotation
  .......... [DEV-2532] added scenario for data display in graphs in monitoring hosts view
  .......... [DEV-2532] fixed incorrectly resolved conflict
  .......... [DEV-2532] created a data source with all required data to check data display on graphs and graph widgets