Updates container to install Mira from source

[brandomr]

This installation is a bit hacky as it requires cloning the Mira repo and installing from source. I was not able to install it per the README but this seems to work.

Verified by:

1. run make build
2. run the container (it spins up Jupyter)
3. exec into the container
4. open Python repl
5. run....

import sympy
import itertools
from mira.metamodel import *
from mira.modeling import Model
from mira.modeling.askenet.petrinet import AskeNetPetriNetModel
from mira.modeling.viz import GraphicalModel

to confirm imports work