proxy_layout 2.0.0

Package to select layout per orientation or device size like mobile vs tablet layouts or portrait vs landscape, they can be combine to support full layout customization.

[2.0.0] - 06/06/2019.

• change interfaces to use builders.
• add builder that receive enums.
• add static helpers methods .

[1.0.0] - 19/02/2019.

• initial release.