Add support for resize of Trove volume

Add form for resize_volume with validation that
volume size is greater than existing size

Change-Id: Iedf3eea31c5fead6d1ba9ef5e02aec577718b236
Implements: blueprint trove-resize-volume-dialog
Adding nodegroup_template panel for Sahara

The nodegroup_template panel provides functionality
to define the hadoop processes and configuration of
those processes that will eventually make-up a
hadoop cluster.
This code was originally from:
https://github.com/openstack/sahara-dashboard

Change-Id: If56f69a2fbb81a0f9eed284aeab5541fa9249fb4
Partial-Implements: blueprint merge-sahara-dashboard
Co-Authored-By: Nikita Konovalov <nkonovalov@mirantis.com>
Co-Authored-By: Dmitry Mescheryakov <dmescheryakov@mirantis.com>
Improve display of flavor information for trove

Trove database instances display size / flavor
information in the details view different to
how it is display for a nova instance.

Rearranged the details view to have a 'Specs'
section that contains Flavor, RAM and Volume
Size information

Change-Id: I45b5a78dc80902fa1ef6174ea534ebb06d5c01e3
Closes-Bug: #1340913
Imported Translations from Transifex

Change-Id: Id54305a5c0ea2a508e670b17ab06d7e6bd8f1913
Merge "Adding nodegroup_template panel for Sahara"
Merge "Add support for resize of Trove volume"
Merge "Imported Translations from Transifex"
Merge "Improve display of flavor information for trove"