Missing glyphs ↊ and ↋ (turned digits 2 and 3)

[rolfmeles]

When using the dozenal system, you would count 1, 2, … 9, ↊, ↋, 10
Some people use a and b or other glyphs. But Isaac Pitman of the dozenal society of Great Britain suggests ↊ and ↋, and since Unicode 8.0 they have unicode slots:
U+218A (↊)
and
U+218B (↋).

To include them, all that needs to be done is to put a copy of 2 or 3 in these unicode slots and turn them 180°.

Only very few fonts already contain them as they are only used for dozenal annotation. So this font would be something special and would be loved by the dozenal community, I guess! :D
At least it would make this font much more complete for me personally.

[pauldhunt]

I will add these in a future release.