Add test-case for validating devfiles on component create

[johnmcollier]

What type of PR is this?
/kind bug

What does does this PR do / why we need it:
Currently, a user can pass in any file to odo create, and it will always succeed provided the file exists, either on disk or as part of a registry, nothing tells them if their devfile is valid or not. No validation is performed until the user tries to push the component.

This PR updates the odo create functionality to properly validate devfiles when a component is created. If an invalid devfile is specified, a validation error will be thrown. I've also left the validation in for odo push, as we should still be validating on each push as well.

Adds an integration test case to validate that odo create validates the devfile

Which issue(s) this PR fixes:

Fixes #3778

PR acceptance criteria:

• Unit test

• Integration test

• Documentation

• I have read the test guidelines

How to test changes / Special notes to the reviewer:
Run the odo create integration tests

[johnmcollier]

Rebased the PR. Since #3867 included the fix also in this PR, this PR has been updated to just include the test case for the scenario

[codecov]

Codecov Report

Merging #3908 into master will increase coverage by 0.17%.
The diff coverage is 70.66%.

@@            Coverage Diff             @@
##           master    #3908      +/-   ##
==========================================
+ Coverage   44.60%   44.77%   +0.17%     
==========================================
  Files         143      143              
  Lines       13860    13923      +63     
==========================================
+ Hits         6182     6234      +52     
- Misses       7089     7097       +8     
- Partials      589      592       +3     

Impacted Files	Coverage Δ
pkg/component/component.go	25.76% <0.00%> (ø)
pkg/devfile/parser/representation.go	0.00% <0.00%> (ø)
pkg/envinfo/envinfo.go	43.93% <0.00%> (-0.52%)	⬇️
...g/devfile/adapters/kubernetes/component/adapter.go	32.93% <9.09%> (-0.41%)	⬇️
pkg/devfile/adapters/kubernetes/utils/utils.go	58.71% <58.82%> (+3.57%)	⬆️
pkg/url/url.go	66.85% <81.57%> (+1.01%)	⬆️
pkg/devfile/parser/configurables.go	57.25% <100.00%> (ø)

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[johnmcollier]

@mik-dass @prietyc123 Can I get a review on this? Thanks!

[girishramnani]

/approve
/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: girishramnani

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• tests/OWNERS [girishramnani]

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[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.