Add new icons to contribute

[hkcowboy]

List of Apps:

• HKUST QR Code
• HKUST Student
• OpenRice
• Asia Miles
• Blue Cross HK
• HKTaxi
• HKTVmall
• Keeta
• MoneyBack
• MyLink
• Pizza Hut HK & Macau
• SoSIM
• Starbucks HK
• Yuu

[Donnnno]

Heya @hkcowboy congrats on your first contribution to Arcticons, nice work!

I have a couple of feedback points to keep in mind for your next one :)

• Check if the line-width of the icons is the same everywhere.
• The hktaxi icon had a fill-based chinese characters, I've converted those to line-based ones.
• No need to add copies of existing icons, like with Starbucks or Pizzahut. Instead, just change the appfilter line to the existing icons.

My changes:

[hkcowboy]

That was quick! Thank you for the inputs - I can't wait for the new release with these icons to be published to f-droid 😀