HORNET-0.5.0-rc8

Breaking change:
** DO NOT USE IT ON MAINNET, IT WILL CRASH IMMEDIATELY AND IT WILL DESTROY YOUR DATABASE !!! **

Added

- Latest solid milestone and neighbor counts of every neighbor to dashboard
- powsrv.io support

Changed

- Breaking protocol version change due to whiteflag
- Heartbeat message was extended by neighbors count and latest solid milestone
- Requests are now sent if an unsynced neighbor may also have the data based on latest solid milestone

Fixed

- SupportedFeatureSets logic in handshake
- Milestone missing / Milestone updated panics
- Database revalidation
- Autopeered neighbors can now be added as static neighbors
- Hash conflicts in the visualizer
- Wrong CTPS calculation on bundle tail reattachments