Rename *Component props to match SectionList

Reviewed By: yungsters

Differential Revision: D4697335

fbshipit-source-id: 742b7a1729ba7a08fe3d9707bcf6c51026779739

Examples/UIExplorer/js/MultiColumnExample.js

@@ -97,9 +97,9 @@ class MultiColumnExample extends React.PureComponent {
         </View>
         <SeparatorComponent />
         <FlatList
-          FooterComponent={FooterComponent}
-          HeaderComponent={HeaderComponent}
-          SeparatorComponent={SeparatorComponent}
+          ItemSeparatorComponent={SeparatorComponent}
+          ListFooterComponent={FooterComponent}
+          ListHeaderComponent={HeaderComponent}
           getItemLayout={this.state.fixedHeight ? this._getItemLayout : undefined}
           data={filteredData}
           key={this.state.numColumns + (this.state.fixedHeight ? 'f' : 'v')}