Added more Axis Label Options

We've added more options for labels. These options can be found on the left sidebar under "Labels"

Axis Labels:

Adjust alignment of labels (left, right center)
Adjust number of lines labels can be broken into (helpful for very long labels, like survey questions)

Total Labels:

Stacked Bar charts can now have a total label at the end of the bar. The total label is a sum of all of the parts within the bar. Previously stacked bar charts could only have their pieces labeled (data labels).