update component names

[amkayondo]

What the PR does

• Change componentWillReceiveProps to UNSAFE_componentWillReceiveProps
• Change componentWillMount to UNSAFE_componentWillMount
  As for the names changes done by react updates https://reactjs.org/blog/2018/03/27/update-on-async-rendering.html

[dusan-turajlic]

Wouldn't the more correct way to do this be to actually change the method names and create a new version tag in git for this project? That way it wouldn't need to maintain old UNSAFE_ methods but still have a version that can be used if your project is running an old version of RN

[amkayondo]

am using current react native version, so would you update the names because I love using this package😊

[dusan-turajlic]

I'm not a maintainer of this project I'm actually quite new to react-native. I was just wondering if there was a reason for just adding the UNSAFE_ instead of updating the class to have new methods. My comment was not a suggestion or advice it was just a question because I would like to know.