Add bridge support by default.

Should be easy enough to add.

```mkdir -p $TARGET_BUILD_DIR/$PRODUCT_NAME.framework/Resources/BridgeSupport/
cd $TARGET_BUILD_DIR
gen_bridge_metadata --64-bit -f $TARGET_BUILD_DIR/$PRODUCT_NAME.framework/ -o $TARGET_BUILD_DIR/$PROJECT_NAME.framework/Resources/BridgeSupport/$PRODUCT_NAME.bridgesupport
```