Add workload identity or cluster service principal metrics emission
Add emit features
Emit features concerning newly installed clusters.
Add emitMetrics to all provisioning states
Add logging statements for metrics,
Allows metrics being emitted to also be used in kusto dashboards.
Constant values are used for all metric names in deminsions.
If an error is encountered while gathering metrics, that metric is omitted.
Unit tests provide 100% coverage for emitMetrics.
Rename emitMetrics to emitProvisioningMetrics, rename emitInstallMetrics to emitMetrics,
emitMetrics can be used for all provisioning states, not just creating state. Changed name to reflect this.