Add filtering to the inventory for plugin groups and ignore hidden/deactivated groups

[marckhouzam]

What this PR does / why we need it

This PR is a step towards properly handling hidden/deactivated plugin groups and improving "plugin group search".
Instead of posting a big PR doing everything, I'm going incrementally to make the review process easier.

So, this PR adds support for filtering plugin group when querying the plugin inventory database.

Thanks to this filtering mechanism, hidden plugin groups are no longer returned by the plugin inventory.
In a follow-up PR I will provide a configuration option to toggle this behaviour.

Which issue(s) this PR fixes

Fixes # N/A

Describe testing done for PR

First publish some plugins and plugin groups to the local test DB:

$ make plugin-build-and-publish-packages
$ make inventory-init
$ make inventory-plugin-add
$ make inventory-plugin-group-add PLUGIN_GROUP_NAME_VERSION=test:v0.0.1

# Configure the CLI to use the local test repository
$ tz config set env.TANZU_CLI_PRE_RELEASE_REPO_IMAGE localhost:5001/test/v1/tanzu-cli/plugins/plugin-inventory:latest
$ tz config set env.TANZU_CLI_PLUGIN_DISCOVERY_IMAGE_SIGNATURE_VERIFICATION_SKIP_LIST localhost:5001/test/v1/tanzu-cli/plugins/plugin-inventory:latest

# Make sure we can see the plugin group
$ tz plugin group search
[i] Reading plugin inventory for "localhost:5001/test/v1/tanzu-cli/plugins/plugin-inventory:latest", this will take a few seconds.
[!] Skipping the plugins discovery image signature verification for "localhost:5001/test/v1/tanzu-cli/plugins/plugin-inventory:latest"

  GROUP
  vmware-tzcli/test:v0.0.1

Now we deactivate the group and check that is not shown anymore:

$ make inventory-plugin-group-deactivate PLUGIN_GROUP_NAME_VERSION=test:v0.0.1
$ tz plugin group search
  GROUP
$ tz plugin install --group vmware-tzcli/test:v0.0.1
[x] : could not find group 'vmware-tzcli/test:v0.0.1'

Reactivate the group and see that it can be used again:

$ make inventory-plugin-group-activate PLUGIN_GROUP_NAME_VERSION=test:v0.0.1

$ tz plugin group search
[i] Reading plugin inventory for "localhost:5001/test/v1/tanzu-cli/plugins/plugin-inventory:latest", this will take a few seconds.
[!] Skipping the plugins discovery image signature verification for "localhost:5001/test/v1/tanzu-cli/plugins/plugin-inventory:latest"

  GROUP
  vmware-tzcli/test:v0.0.1

$ tz plugin install --group vmware-tzcli/test:v0.0.1
[i] Installing plugin 'builder:v0.90.0-alpha.0' with target 'global'
[i] Installing plugin 'test:v0.90.0-alpha.0' with target 'global'
[ok] successfully installed all plugins from group 'vmware-tzcli/test:v0.0.1'

Release note

Plugin groups that are marked as "deactivated" in the repository of plugins are now ignored by the CLI.

Additional information

Special notes for your reviewer

[anujc25]

👍

[anujc25]

LGTM. Thanks!