Lack of support for multi-line axis labels

[IKupriyanov-HORIS]

Code:

from lets_plot import *
LetsPlot.setup_html()

data = {
    'x': ['foo\nbar\nbaz'],
    'y': ['qwe\nasd\nzxc']
}
ggplot(data) + geom_point(aes(x='x', y='y'))

Output: