error out if unable to resolve the path from raw content

[yangcao77]

What does this PR do?:

This issue fixes the bug that if the uri is not able to resolve from rawcontent, it will be ignored. Now it errors out with the message error getting kubernetes resources definition information, unable to resolve the file uri: %v", uri
Also added test for the function getKubernetesDefinitionFromUri, where the bug was found.

Which issue(s) this PR fixes:

Fixes devfile/api#1039

PR acceptance criteria:

Testing and documentation do not need to be complete in order for this PR to be approved. We just need to ensure tracking issues are opened.

• Open new test/doc issues under the devfile/api repo
• Check each criteria if:
• There is a separate tracking issue. Add the issue link under the criteria
  or
• test/doc updates are made as part of this PR
• If unchecked, explain why it's not needed

• Unit/Functional tests

• QE Integration test

• Documentation

• Client Impact

• Gosec scans

How to test changes / Special notes to the reviewer:

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kim-tsao, yangcao77

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