Allow overriding Fargate Profile name and Fargate Role name. Update Fargate Profile naming

[aknysh]

what

• Allow overriding Fargate Profile name and Fargate Role name
• Add the provide Kubernetes namespace to the Fargate Profile name when it's derived from the context

why

• Allow the caller of the module to specify the names of the Fargate Profile and Fargate IAM Role (instead of deriving them from the context)
• Allow provisioning multiple Fargate Profiles into the same account (using the same context values) but for different Kubernetes namespaces

[aknysh]

/test all