Add Compatibility Mode, set default compatibility to highest version

[PrzemyslawKlys]

This change fixes:

• compatibility mode #57

• Adds default settings, including compatibility settings, math properties, and few other things that are automatically added when Microsoft Word creates a document

• Adds default web settings that are the same to what Microsoft Word does

Sample of usage for compatiblity mode

ublic static void Example_BasicWordWithDefaultFontChange(string folderPath, bool openWord) {
    Console.WriteLine("[*] Creating standard document with different default style (PT/BR)");
    string filePath = System.IO.Path.Combine(folderPath, "BasicWordWithDefaultStyleChangeBR.docx");
    using (WordDocument document = WordDocument.Create(filePath)) {
        document.Settings.FontSize = 30;
        //document.Settings.FontSizeComplexScript = 30;
        document.Settings.FontFamily = "Calibri Light";
        document.Settings.FontFamilyHighAnsi = "Calibri Light";
        document.Settings.Language = "pt-Br";

        document.Settings.ZoomPreset = PresetZoomValues.BestFit;

        Console.WriteLine(document.CompatibilitySettings.CompatibilityMode);

        document.CompatibilitySettings.CompatibilityMode = CompatibilityMode.Word2013;

        Console.WriteLine(document.CompatibilitySettings.CompatibilityMode);

        document.CompatibilitySettings.CompatibilityMode = CompatibilityMode.None;

        Console.WriteLine(document.CompatibilitySettings.CompatibilityMode);

        string title = "INSTRUMENTO PARTICULAR DE CONSTITUIÇÃO DE GARANTIA DE ALIENAÇÃO FIDUCIÁRIA DE IMÓVEL";

        document.AddParagraph(title).SetBold().ParagraphAlignment = JustificationValues.Center;

        document.Save(openWord);
    }
}