[MetricsAdvisor] Multiple classes and properties renames

[kinelski]

PR looks big because of the generated code, but here's an exhaustive list of changes. Class renames are usually accompanied by property renames. Property renames are sometimes accompanied by constructor parameter renames.

Cross-language consistency:

• Renamed class MetricAnomalyAlertConfigurationsOperator to DetectionConditionOperator.

Architects feedback:

• Discriminators should be named Kind, not Type. Also, the name FeedbackKind is too generic.
  • Renamed class DataSourceType to DataSourceKind.
  • Renamed class FeedbackType to MetricFeedbackKind.
• Name too generic.
  • Renamed class PeriodType to MetricPeriodType.
• New name sounds better.
  • In DataFeed, renamed AdministratorsEmails to AdministratorEmails, and ViewersEmails to ViewerEmails.
  • In NotificationHook, renamed AdministratorsEmails to AdministratorEmails.
  • In ChangeThresholdCondition, renamed IsWithinRange to WithinRange.
• Links should use the suffix Uri instead of Link in .NET.
  • In NotificationHook, renamed ExternalLink to ExternalUri.
• Consistency with other properties in the library.
  • In MetricAnomalyFeedback, renamed AnomalyDetectionConfigurationId to DetectionConfigurationId, and AnomalyDetectionConfigurationSnapshot to DetectionConfigurationSnapshot.