…elastic#41836)

* [Infra UI] Add cloud metrics and cloud/host info to metadata endpoint

* Adding cloud metrics

* Correcting the pod host/cloud info

* Adding tests to metadata for new cloud/host info

* Fixing test to include machine.type

* Adding aws test data

* Refactor metadata container into hook

* Functionally complete

* updating tests

* Removing Metadata GraphQL endpoint and supporting files

* Moving types under common/http_api and prefixing with Infra

* adding filter for aws.ec2 dataset

* move away from fetch to useHTTPRequest

* Add decode function to useHTTPRequest; rename data to response;

* Changing from Typescript types to IO-TS types and adding checks at client and server