WIP: Rework documentation parser

[MangelMaxime]

Related to ionide/FsAutoComplete#446

I am creating this PR because I am starting the integration with the new FSAC version. For now, it's using the new parser for the tooltip and info panel.

People can try to build it locally and see if the parser is working as expected.

[MangelMaxime]

This PR also change the "F#: Generate generation" output format:

Before

/// **Description**
///
/// **Parameters**
///   * `url` - parameter of type `'a`
///   * `data` - parameter of type `'b`
///   * `decoder` - parameter of type `'c`
///   * `properties` - parameter of type `'d`
///
/// **Output Type**
///   * `string`
///
/// **Exceptions**
///
let test2 url data decoder properties = ""

After

/// <summary>
/// 
/// </summary>
/// <param name="url"></param>
/// <param name="data"></param>
/// <param name="decoder"></param>
/// <param name="properties"></param>
/// <returns></returns> 
let test2 url data decoder properties = ""

There is a bit of information loss, but it's because of the feature supported by doc comment tags.