Added support for Font Family and Letter Spacing

[mrmichaelmoreau]

Added support for Font Family and Letter Spacing

[jeziellago]

Hi @mrmichaelmoreau, thanks for contributing!
Seems your solution conflicts with #102, where the Font Family were solved.
Could you check if that solution solves your problem? If not, could you make the adjustments needed in your PR and update the branch?

[pucamafra]

Hey @jeziellago, there is an issue on the solution merged, we are loading the fontFamily after setting up the font weight and font style, and when we resolve the fontFamilty we are not sending them on the resolveAsTypeface method.
So, either we use the solution that @mrmichaelmoreau suggested or we invert the order we config fontStyle, fontWeight and fontFamily, something like this.
Before

After

We that even if dont pass the fontWeight and fontStyle here, we config them after on applyFontWeight and applyFontStyle.