Show identity states on the timeline

[brusherru]

It should display statuses per-identity for Epochs, Layers, PoET rounds.

The bars on the timeline which has corresponding Smesher Identitity Events should has a special mark (per every identity).
The color of these marks should reflect the status.
For example, if smesher runs three PoS services (has three identities), then there might be three marks (e.g. circles) in every epoch with different status. First one might be yellow (meaning PoS proving in the process), another one is red (meaning something failed), and another one is green (meaning that identity is eligible for rewards in that epoch).
The similar logic should be used for other objects on the timeline.

By clicking on the items on the timeline there should be detailed info about statuses per each identity.

These identity marks may also contain letters / numbers to explicitly map to one of identities.