Add configurations to OpenTabletDriver project as embedded resource

[InfinityGhost]

Changes

• NuGet package will build with configurations as embedded resources
• Can be accessed with code similar to the following:

private IEnumerable<TabletConfiguration> GetConfigurations()
{
    // Retreive all embedded configurations
    var asm = typeof(Driver).Assembly;
    return from path in asm.GetManifestResourceNames()
           where path.Contains(".json")
           let stream = asm.GetManifestResourceStream(path)
           select Deserialize(stream);
}

private TabletConfiguration Deserialize(Stream stream)
{
    using (var tr = new StreamReader(stream))
    using (var jr = new JsonTextReader(tr))
        return ConfigurationSerializer.Deserialize<TabletConfiguration>(jr);
}

private JsonSerializer ConfigurationSerializer { get; } = new JsonSerializer();