Feature : add mediaconvert jobtemplate resource

[lazouz]

Description

This Merge request aims to add mediaconvert jobtemplate resource to the AWS terrafom provider

This is a draft merge request for now

Relations

Relates #11189

References

Output from Acceptance Testing

yet to come

[github-actions]

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[lazouz]

Hello @justinretzolk, If by any chance you have 10 minutes for this PR, can you give me advice about :

• testing this new resource the correct way
• the code handling the http requests to AWS API, at the end of the file job_template.go
• anything that you could find good or bad in this PR that can help to improve it (as I said somewhere else, I'm not a go developer, but I'll be glad to make progress )