Information can be obtained from Ged configurations

Provide extra hook to create summary model in derived classes

Allows reasonably to use event_demo.C application offline

When running without server, emulate functionality locally,
intercepting MIR calls.

Use sophisticated layout to correctly place all items elements.
But this shows grate flexibility of the openui5!

Standard item is not flexible enough, therefore try to construct our
own. Here we could define, which elements and how are drawn. 
Should be much more flexible for the future

Also can decide if fRnrSelf or fRnrChildren is shown
Accordingly submit command to the server

While StandardTreeItem is used, any click on item shows unwanted
checkbox again.

Defines how GL viewer reacts on DblClick.
Either "Reset" camera position as before or just ignore event.

small fixes in other parts

Three different types are supported: Three, JSRoot, RCore

Any optional scripts loaded there

Provide central method to extract intersection for specified mouse
position. Use same method for highlight and context menu

Full communication chain is established:
1. Request send to the manager
2. It redistribute request over all connections
3. Each client actiavte selected element in SummaryView

Work for now only in JSROOT-based rendering

Here one can implement custom options like hide or browse

Provide default value 22, which is much more compact then default

Used as timeout value in interactive operations in WebEve
Most prominent example - hightlight of drawn components

There are two modes to render GL in WebEve. Default is pure three.js
rendrerer, where all components should be configured directly.
Another is usage of JSROOT GeometryPainter, which provides many
interactive features. To use it, put into rootrc:

    WebEve.JsRootRender:          1

Simplify construction of GED layout

When element rendering flag changed, SummaryView will be changed as well

It should be central point to manage such requests and organize offline
support

Can be used to toggle items rendering or show main color of elements

Exclude as much space as possible, keeping small margins on top and
bottom