Math formatting

[K4LCIFER]

Currently, Ibis doesn't support any method to format math.

I propose adding support for LaTeX, and/or Typst.

For example, to format the following: one would write something like this (for LaTeX):

$$
\oint_S \vec E \cdot \mathrm d\vec A = \frac{1}{\epsilon_0}Q
$$

Or, similarily for Typst:

$
integral.cont_S arrow(E) dot.op d arrow(A) = frac(1, epsilon.alt_0)Q
$