Add FontVersion object greater than/less than comparisons

[chrissimpkins]

implement with tuple comparisons

(major version integer, minor version int 1, minor version int 2, minor version int 3)

[chrissimpkins]

added source but commented out in 18cd869

Think through comparisons of "1.001" vs. "1.01" vs. "1.1" before implementation. These will be different (and probably should be) with current approach.