Add an animated exposure notification status icon

[kolyaopahle]

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Description

This PR adds infrasturcture for animated icons and and also adds a first icon for the exposure status

[harambasicluka]

On a Nokia 7.1 with Android 10 I get the following results:

Could you please resolve that?

[harambasicluka]

Please provide tests for Corona-Warn-App/src/main/java/de/rki/coronawarnapp/util/DataBindingAdapters.kt

[harambasicluka]

The bugs where caused by a build variant which didn't included the animated icon.

The contrast of the animation has to be confirmed by the designers, otherwise it looks good! 💯

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

100.0% Coverage
0.0% Duplication