Lists with addedLines and deletedLines in ContentChanges

[Stijn-Rutten]

I would like to have the possibility to have IEnumerables of deletedLines and addedLines in ContentChanges these would contain an instance of the following struct for each line containing the line number and the added or deleted content on that line.

struct Line {
    public int LineNumber { get; }
    public string Content { get; }
}

This modification would make it easier to navigate through the compare different states of files. Instead of having to parse the patch

[bording]

Implemented in #1790