Add support for bidirectional ratings

[trajano]

Something like

☠️ ❌ 👎🏼 🤷🏼👍🏼✔️💖

Strongly disagree
Disagree
Somewhat disagree
Indifferent
Somewhat agree
Agree
Strongly Agree

[LinuxKunaL]

Dear @Monte9, Can I work on this?

[Monte9]

Hi @LinuxKunaL this repo isn't maintained and if you'd like to work on it take a look at @reactnativeelements repo and contribute to that