Add unit test in skeleton_event.h for checking timestamp

[LittleHuba]

What

Add a test that check that current_timestamp_ is set correctly.
It should be possible to inject your own EventDataControl which has some preset slot values using ExpectControlSegmentOpened() in the SkeletonMockedMemoryFixture.

How

No response

Estimates for realization

• Effort low
• No impact on users expected

Category

• Affects Detailed Design

Requirements / Architecture

• Requirements / Architecture are not affected by this change?