Add optional containerProps, mainProps and drawerProps props

Author: SuhairZain

index.js

@@ -566,6 +566,7 @@ export default class Drawer extends Component {
         key="drawerContainer"
         onLayout={this.handleSetViewport}
         style={this.stylesheet.container}
+        {...this.props.containerProps}
         >
         {first}
         {second}
@@ -580,6 +581,7 @@ export default class Drawer extends Component {
         key="main"
         ref={c => this.main = c}
         style={[this.stylesheet.main, {height: this.getMainHeight(), width: this.getMainWidth()}]}
+        {...this.props.mainProps}
         >
         {this.props.children}
         <View
@@ -599,6 +601,7 @@ export default class Drawer extends Component {
         ref={c => this.drawer = c}
         elevation={this.props.elevation}
         style={[this.stylesheet.drawer, {height: this.getDrawerHeight(), width: this.getDrawerWidth()}]}
+        {...this.props.drawerProps}
         >
         {this.props.content}
         <View