Add ability to cache Roborock maps instead of always reloading

[Lash-L]

Breaking change

Proposed change

After talking with Paulus, he has multiple maps and the time it takes to startup Roborock is costly (about 40s) because of the nature of how we have to load the images. Now we only have to do that once because they are cached.

lightly relates to #97311 and conversations on caching there.

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[Lash-L]

Anything blocking for this? Would love to get it merged in 2024.5 as I have a semi-related issue #108038 and I would like to get this done so I can play around with some other things in image without merge conflicts

[Lash-L]

With some other features - this MR now adds a bit of complexity that I need feedback on.

We need the rooms for a) the get map info service and b) for the current room sensor #115326

However, if we are getting the result of a map from the cache, then we don't call the original get_rooms. It will update for the currently select room - but not for any maps that aren't selected, as we currently do that when we go through each map.

So I believe I need to cache that as well. Is a text file the ideal way to do that? Or something else - it would essentially just be a dictionary I am saving.

[balloob]

yeah, you can use our storage helper. create a file <domain>.<config entry ID>.

[Lash-L]

yeah, you can use our storage helper. create a file <domain>.<config entry ID>.

Marking as draft until i have a chance to do that

[Lash-L]

yeah, you can use our storage helper. create a file <domain>.<config entry ID>.

Marking as draft until i have a chance to do that

Finally got around to it. Should be ready for a look over

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