SMODS.should_keep_on_use for finer control over keep_on_use

[borb43]

Adds SMODS.should_keep_on_use(card), which now handles calling a center's keep_on_use. This can be hooked to more easily allow external effects to keep used consumables, whereas previously all mods would have to patch the same piece of code to achieve this.

Additional Info:

• I didn't modify api's or I've made a PR to the wiki repo.
• I didn't modify api's or I've updated lsp definitions.
• I didn't make new lovely files or all new lovely files have appropriate priority.

[Aurelius7309]

The more practical approach would probably to either integrate keep_on_use into the using consumable context or make a new context for it. Hookables for effects like this aren't all that desirable