L2 Constructs for AWS Elemental MediaPackageV2

[jamiepmullan]

Description

Adding L2 constructs for AWS Elemental MediaPackageV2 to help with simplifying the developer experience required in L1's today.
We will greatly simplify the developer experience in CDK by introducing AWS Elemental MediaPackage L2 constructs.
Constructs that will have a mixture of sensible defaults as well as methods to help build correct configurations
of Channel Groups, Channels and Origin Endpoints.

Roles

Role	User
Proposed by	@jamiepmullan
Author(s)	@jamiepmullan
API Bar Raiser	@kumsmrit
Stakeholders

See RFC Process for details

Workflow

• Tracking issue created (label: status/proposed)
• API bar raiser assigned (ping us at #aws-cdk-rfcs if needed)
• Kick off meeting
• RFC pull request submitted (label: status/review)
• Community reach out (via Slack and/or Twitter)
• API signed-off (label status/api-approved applied to pull request)
• Final comments period (label: status/final-comments-period)
• Approved and merged (label: status/approved)
• Execution plan submitted (label: status/planning)
• Plan approved and merged (label: status/implementing)
• Implementation complete (label: status/done)

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Author is responsible to progress the RFC according to this checklist, and
apply the relevant labels to this issue so that the RFC table in README gets
updated.

[jamiepmullan]

just to keep this up to date, I've started the implementation on these constructs

[jamiepmullan]

aws/aws-cdk#37279