v0.60 Health Checks
- Basic - ensures the cluster can create a grain and return the status without exception
- CPU - returns "Degraded" when the CPU is above 70%, "Unhealthy" if above 90%
- Memory - returns "Degraded" when the memory usage is above 90%, Unhealthy when above 95%
- Adds web host as separate hosted project within the silo host, run along with the orleans silo host