Release 2.0.0

• PR #46 (@smocken78) merged. IO Preview support for data bytes.
• PR #48 (@Lukas2019) merged. Example project android upgrade.
• PR #50 (@evan8133) merged. flutter_reorderable_grid_view version fixed. updated to ^5.4.0.
• Issue #44 : io_preview with byte data | fixed
• Issue #47 : Type Mismatch Error in multi_image_picker_view.dart | fixed
• Issue #49 : errror running app using this multi_image_picker_view: ^1.1.0 using | fixed