Proposal: simplified summary codedoc

[jakubiszon]

I would like to be able to use less verbose codedoc syntax, e.g.

/// Class <c>Point</c> models a point in a two-dimensional plane.
public class Point
{
    /// Method <c>Draw</c> renders the point.
    void Draw() {...}
}

Should be equivalent to:

/// <summary>
/// Class <c>Point</c> models a point in a two-dimensional plane.
/// </summary>
public class Point
{
    /// <summary>
    /// Method <c>Draw</c> renders the point.
    /// </summary>
    void Draw() {...}
}

Having enumerations documented takes a lot of space and visual noise. This simplified syntax would make it a lot easier to read.

[ufcpp]

related to #891