dashboard: fix so panel titles doesn't wrap

* make wheel passive

* remove console

Respect explore settings in config ini

Query helpers, Annotations, and Template Variables for IFQL datasource

* nicer collapsed row behavior

* don't block events

* use a div to toggle

* use singular name

* Implements findMetricQuery()
* Macros for template queries: measurements(), tags(), tag_values(),
 field_keys()
* Tests for macro expansion

Previous explore restrictions only took permissions into consideration.

* add `exploreEnabled` to global settings
* only bind `x` if enabled
* only show explore in panel menu if enabled

* raw CSV preview next to query field (query inspector is not that
 useful here)
* added result table and record counts

InfluxDB IFQL datasource (beta)

[skip ci]

Always show server admin link in sidenav if grafana admin

update google auth config docs

[skip ci]

Fix search by folder in dashboard list panel

added if to check if new variable has been added

[skip ci]

change admin password after first login

Closes #12148

Restrict Explore UI to Editor and Admin roles