[HomeApplication][WApps] Add badge icon

[p-czaja]

1. Add property:
   int Badge
   to the RotarySelectorItem class that is responsible for viewing the set number next to item icon. If the number is 0 (default) no number is displayed.

[p-czaja]

@huiyueun, could you please take a look?

[huiyueun]

#70

[huiyueun]

I've added 'Badge' property to RotarySelectorItem.
If you set 'Badge' property, draw badge icon.
ex)
RotarySelectorItem item;
item.Badge = 4;

But Badge icon have problem.
If the Badge number is three-digit or two-digit, the badge icon size should be increased. If I increase the size arbitrarily, the image will be broken. Images with large badge icon resources cannot be found. How do we deal with it?

[huiyueun]

#90

I changed it to the resource you sent me.
But I think "bg_1.9.png" is also needed, but there is no file.
could you check this file?

1 digit -> bg_1.9.png
2 digit -> bg_2.9.png
3 digit -> bg_3.9.png
And the UX guide and the file you sent are different.