Star imports of algebras confuse flake8

[eric-wieser]

from clifford.g3c import * confuses flake8 with F403 and F405 errors.

I don't know if we can do anything about this, but figured I'd open an issue to track it.

[eric-wieser]

Fixing this would come at the cost of code like

# note: full import used to make flake8 happy
from clifford.g3c import (
    # basis elements
    e1, e2, e3, e4, e5,
    e12, e13, e14, e15, e23, e24, e25, e34, e35, e45,
    e123, e124, e125, e134, e135, e145, e234, e235, e245, e345,
    e1234, e1235, e1245, e1345, e2345,
    e12345,

    layout,

    # conformalize "stuff"
    E0, ep, einf, homo, down, en, eo, up, I_base
)

(pasting here so I can nuke my local stash with this change)