feat: WorkspaceResources interface and List method

[stefan-kiss]

Description

Implementing missing Workspace Resources api

Testing plan

External links

• workspace-resources
• Open Issue #754

Output from tests

go test ./... -run TestWorkspaceResourcesList -timeout=30m
?   	github.com/hashicorp/go-tfe/examples/backing_data	[no test files]
?   	github.com/hashicorp/go-tfe/examples/configuration_versions	[no test files]
?   	github.com/hashicorp/go-tfe/examples/organizations	[no test files]
?   	github.com/hashicorp/go-tfe/examples/registry_modules	[no test files]
?   	github.com/hashicorp/go-tfe/examples/run_errors	[no test files]
?   	github.com/hashicorp/go-tfe/examples/state_versions	[no test files]
?   	github.com/hashicorp/go-tfe/examples/users	[no test files]
?   	github.com/hashicorp/go-tfe/examples/workspaces	[no test files]
?   	github.com/hashicorp/go-tfe/mocks	[no test files]
ok  	github.com/hashicorp/go-tfe	7.276s

[hashicorp-cla]

All committers have signed the CLA.

[brandonc]

This looks great! Thanks for making the contribution. I only found one very small tweak. What's really surprising is that the README says that the resource is available when it was, in fact, not.

[brandonc]

Can you make this field type a *string to reflect the fact that it can be null?

[brandonc]

@stefan-kiss We're actually prepping a release right now so I'm going to bring your commits into the repo and add the quick change I recommended.

[github-actions]

Reminder to the contributor that merged this PR: if your changes have added important functionality or fixed a relevant bug, open a follow-up PR to update CHANGELOG.md with a note on your changes.

[stefan-kiss]

@stefan-kiss We're actually prepping a release right now so I'm going to bring your commits into the repo and add the quick change I recommended.

sorry, i missed the earlier comments but yes, it's perfectly fine. didnt realise it could be null :) anyway glad it was merged & thank you!