Bullseye Polar Data Plot for AHA 16 segments representation

Modification of Dan Ennis bullseye plot to allow AHA 16 segments plots.

BULLSEYE plots patch data in polar coordinates, with option to match the AHA 16 segments representation.

Original bullseye submission here:
https://fr.mathworks.com/matlabcentral/fileexchange/16458-bullseye-polar-data-plot

AHA 16 segments reference:
Cerqueira MD, et al. Circulation 2002;105:539–542. doi: 10.1161/hc0402.102975.

Usage example:
data=[3.3 2.8 2.3 1.6 2.0 3.1 4.3 3.8 3.5 3.6 3.7 4.5 4.8 4.8 4.8 4.8];
figure(1), bullseye2(data','aha',1,'n',10);colormap('winter'),caxis([1 5]);