Quadlet - prefer "param val" over "param=val" to allow env expansion

[ygalblum]

When possible use a generic function to add strings and booleans
Adjust tests

Does this PR introduce a user-facing change?

No

None

Resolves: #24105

[packit-as-a-service]

Ephemeral COPR build failed. @containers/packit-build please check.

[Luap99]

LGTM, I really like the map approach.

I think for future work we should consider splitting the maps with common options between pod/container out so they both can use the same thing and we do not need to add such option in both places all the time, especially as pod untis currently only supported limed keys. Of course there will still be a bunch of work in adding tests/docs then but hopefully that can be improved as well at some point

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Luap99, ygalblum

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [Luap99,ygalblum]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[rhatdan]

LGTM
But tests not happy.

[ygalblum]

@rhatdan The tests are fine, it's the packit service that's been acting out for a while now. I can see that it's getting 503 when trying to create the build root

[rhatdan]

/lgtm

[ygalblum]

@Luap99 you are right. There is more common code in the Convert functions, especially in their beginning.