add TextProps

[Selfmade-RuLeZ]

Hi,

I'm running fine with your library, the single problem I got is, that I can't use react-native TextProps for testing and accessiblity.
I've edited it already and tested it in my usecase, it works. 😃

Edit2: Created a fork and corresponding Merge Request 👍

Things I changed:

• import from react-native
• IconPropsBase extends TextProps
• sparse operator at props
• added ...textProps to every React Element

Good job mate 👍

Edit:

• changed props to match them with TextProps