This exposes samples via the console templates in the
text exposition format, which the parser will fall back to.
This is not a proper federation solution, but should tide us
over for now. Extenions could include passing in a query or queries in
the url parameters.
This provides the basic js, css and console template
templates required to build dashboards.
Included as an example are consoles for the node_exporter.
Change-Id: I4cfeea5e9691a9413f74ae98ca32a908df8e4a59