* stackdriver: add resource type to filter and group bys

* stackdriver: remove not used param

* stackdriver: refactor filter and group by code

* stackdriver: remove resource type if its already in filter list

* stackdriver: remove debug logging

* stackdriver: remove more debug logging

* stackdriver: append resource type to legend name if there are more than one type present in the response

* stackdriver: only make new request if filter has real value

* stackdriver: format legend support for resource type

* stackdriver: add resource type to documentation

* stackdriver: not returning promise from query function

* stackdriver: fix refactoring bug

* stackdriver: remove not used import

[skip ci]

Another fix for kiosk mode handling

Kiosk mode url fix

Feat - keyboard shortcut to toggle legend

Explore: reuse table merge from table panel

ux: remove duplicate placeholder attribute

[skip ci]

[skip ci]

* fix: text box template variable doesn't work properly without a default value

Add debug logging of dashboard permission checks

Stackdriver: Add possibility to authenticate using GCE metadata server