SQL new capabilities, moved operations, and type fixes

[jaredmoo]

Description

• Added new elastic pool capabilities APIs
• Moved SqlManagementClient.ListOperations() to SqlManagementClient.Operations.List() as per Swagger team guidance (breaking change)
• Various type fixes (breaking changes):
  • Database.DatabaseId: string -> Guid
  • Database.RecoveryServicesRecoveryPointResourceId: DateTime -> string
  • ElasticPoolActivity.OperationId: string -> Guid
  • MaxSizeCapability.Limit: long? -> long
  • ServiceObjective.IsDefault: bool? -> bool
  • ServiceObjective.IsSystem: bool? -> bool
  • ServiceObjective.Enabled: bool? -> bool
  • ServiceObjectiveCapability.Id: string -> Guid
  • ServiceTierAdvisor.Confidence: double? -> double
  • SloUsageMetric.ServiceLevelObjectiveId: Guid? -> Guid
  • SloUsageMetric.InRangeTimeRatio: double? -> double
• SloUsageMetric properties are now all readonly (breaking change)

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• I have read the contribution guidelines.
• The pull request does not introduce breaking changes.

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Testing Guidelines

• Pull request includes test coverage for the included changes.

SDK Generation Guidelines

• If an SDK is being regenerated based on a new swagger spec, a link to the pull request containing these swagger spec changes has been included above.
• The generate.cmd file for the SDK has been updated with the version of AutoRest, as well as a link to the swagger spec, used to generate the code.
• The project.json and AssemblyInfo.cs files have been updated with the new version of the SDK.

[shahabhijeet]

Missing test coverage for the new "ElasticPool" feature?

[shahabhijeet]

@jaredmoo post migration, we no longer need project.json, global.json and *.xproj.
These might have been left around if I found it will be useful to reference what package references were used earlier prior to migration.
If everything looks good, you can delete these files.

[jaredmoo]

The new elastic pool capabilities classes are covered by https://github.com/Azure/azure-sdk-for-net/blob/vs17Dev/src/SDKs/SqlManagement/Sql.Tests/CapabilitiesScenarioTests.cs .