Bug: Unable to set a SelectionColor Property in TextInput Component

[syedabuthahirm]

Current behaviour

SelectionColor Property Doesn't work on TextInput Component. Currently, it's checking error and error color variables from props.
Reference Links:
Variable Declartion in TextInput Component
Variable Used in TextInput Component

Expected behaviour

It Should Accept any color

Code sample

 <TextInput
      label='Email'
      selectionColor={'#F8DE7E'}
      value={this.state.text}
      onChangeText={text => console.log(text) }
 />

Your Environment

software	version
ios or android	Android
react-native	0.54.0
react-native-paper	1.9.1
node	8.11.2
npm or yarn	4.2.0

[ferrannp]

Related to #425.