Added label options to plot method

[smartbackwards]

Added label_direction and label_fontsize as optional parameters in the point_settings dictionary, in the plot method.

label_fontsize specifies the size of the font for the label of a given point (defaults to 6, old hard coded parameter)

label_direction specifies the location of the label in relation to the dot. Defaults to 0 - above the point. 90 would place the label to the right of the point, 180 below, 270 directly to the left etc.

Please note two things:

• i hardcoded the label_horizontal_offset value. The alternative was to create another pyplot figure, plotting the label there and getting the length from text_object.get_window_extent(renderer=renderer). That seemed like it would slow down the time of execution too much. The hardcoded value works best for labels of length 5-10.
• Aesthetically it made more sense for me for the label to be on top of the HP/armor bars, instead of enlarging/adjusting the position of the ellipse on which the label is plotted. see pics below: