feat: add volatile-wc command

[ikegami-t]

This is for Volatile Write Cache feature to get and set.

[keithbusch]

There's a lot of features, i don't think any one of them needs to be a top level command. We already have the "get-feature" and "set-feature" which can easily access this. If you want to have symbolic names instead of having to remember the feature-id value, then sure, that might be helpful.

[keithbusch]

oh, you all have already made a sub-command for all these. Well, I guess it's too late to go back now.

[ikegami-t]

Thanks for your reviewing and comments.

There's a lot of features, i don't think any one of them needs to be a top level command. We already have the "get-feature" and "set-feature" which can easily access this. If you want to have symbolic names instead of having to remember the feature-id value, then sure, that might be helpful.

Yes will try to add the symbolic names later.

oh, you all have already made a sub-command for all these. Well, I guess it's too late to go back now.

The feat plugin commands can be set the feature dword or data fields values directly.

[ikegami-t]

Just pushed the PR: #2859 for the symbolic names.

[igaw]

Thanks!