Create BuildListOption for REST query params

[tarilabs]

Resolves #138
as discussed with @lampajr

Description

Ignores unsupplied-but-golang-empty query params, and relies on defaults by gRPC; the defaults could now be overridden for alternative default-values in a single place if needed later.

How Has This Been Tested?

After Build and a MLMD available on docker:

robot test/robot/UserStory.robot
curl -X 'GET' 'http://localhost:8080/api/model_registry/v1alpha1/registered_models?pageSize=47' -H 'accept: application/json'
curl -X 'GET' 'http://localhost:8080/api/model_registry/v1alpha1/registered_models' -H 'accept: application/json'

Merge criteria:

• The commits and have meaningful messages; the author will squash them after approval or will ask to merge with squash.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[lampajr]

lgmt, left just one minor comment

[lampajr]

Rebased from main and added commit a55f7be to fix the image container build issue.

Note that the check here is still failing because for security reason we are using pull_request_target event, this way changes applied on this PR are not actually tested in the container build --> raised issue opendatahub-io/model-registry#145 to keep track of this.

The change lgtm!