Release 0.22.0

Enhancements:

• Card sorting for Null games has the same suit order as Grand games #146
• Improved highlighting of declarer player #153
• Project structure follows recommended layout by Gradle #147

Bugfixes:

• Game over without matadors is displayed correctly for ISS games #167
• Cards of the declarer are shown to the opponents in Ouvert games #161
• Name of local table is editable #140