Get string property name in Display Template view ( Html.Display("Property1") )

I'm trying to use Display html helpers, and they would be a lot more useful If I could get the property name in the .cshtml template view.
Example:
```
@Html.DisplayFor(o => o.FirstName)
```
and `String.cshtml`
```
@model string
@{
Layout = "_DisplayFieldLayout";
}
@Model
```
`_DisplayFieldLayout.cshtml`
```

### Describe the solution you'd like

be able to get the display property name string value in the display helper view

Start with the String.cshtml display template and _DisplayFieldLayout.cshtml example, then trace how Html.DisplayFor(o => o.FirstName) supplies information to the template. Determine whether the display property name is available in the current view context and identify the framework area where exposing it would belong. Done means the template or layout can reliably access the property name for the requested display expression.

Written by the indexing model from the issue text.