Change service list output to make linking easier

[dharmit]

What type of PR is this?
/kind code-refactoring
/area UX

What does does this PR do / why we need it:
It changes the way odo service list prints the output.

Which issue(s) this PR fixes:

Fixes #3560

How to test changes / Special notes to the reviewer:
Start a few Operator backed services and execute odo service list. Output should be of the format:

$ odo service list
NAME                          AGE
Cockroachdb/example           3s
EtcdCluster/example           3m22s
EtcdCluster/myawesomeetcd     3s

[kadel]

/approve
/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kadel

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• pkg/odo/cli/service/OWNERS [kadel]

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[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[openshift-bot]

/retest

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

[codecov]

Codecov Report

Merging #3561 into master will decrease coverage by 0.20%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #3561      +/-   ##
==========================================
- Coverage   46.27%   46.06%   -0.21%     
==========================================
  Files         112      113       +1     
  Lines       11386    11437      +51     
==========================================
  Hits         5269     5269              
- Misses       5608     5659      +51     
  Partials      509      509              

Impacted Files	Coverage Δ
pkg/odo/cli/service/list.go	0.00% <0.00%> (ø)
pkg/preference/machine_output.go	0.00% <0.00%> (ø)

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[openshift-bot]

/retest

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