WIP: add ICA plot topographic map
FIX: funciton handle

save current state

current state

ENH: add subplots

ENH: add support for multiple ICA topomaps
ENH: add test
ENH: update tests + example
ENH: use iteration
COSMITS
ENH: remove unit
update what's new
COSMTIS
Merge pull request #666 from dengemann/topomap_ica

WIP: topomap ica