Add support for Archived Metrics - Routing destination Archived and ExceptionRules

[echoi-splk]

Update metricruleset model based on 3.3.0 OpenAPI spec (see https://cd.splunkdev.com/devplat-pr-32/o11y-openapi/-/merge_requests/305) Add Routing destination "Archived" Add handling of Metric Ruleset > ExceptionRules

• Add handling of ExceptionRule > Restoration jobs

Remove metric_ruleset/model_destination.go

• this file was based on a 2022 early draft of metric rulesets

[atoulme]

@echoi-splk please do the following:

• Add yourself to the CODEOWNERS file for all files you should continue to watch and own after this PR
• Ask a team member to review and approve the changes

[echoi-splk]

@echoi-splk please do the following:

• Add yourself to the CODEOWNERS file for all files you should continue to watch and own after this PR
• Ask a team member to review and approve the changes

Done in https://github.com/signalfx/signalfx-go/pull/221

[ndmoeller]

LGTM