Feature Request: use_cache instead of ignore_cache

[jhamman]

In our application, we want to utilize Beanie's cache feature but only in certain queries. We would like to have most queries bypass the cache (for consistency reasons) while allowing a few queries to explicitly opt into using the cache. Would an API like this would make sense:

class Sample(Document):
    num: int
    name: str

    class Settings:
        use_cache = True
        cache_default = 'ignore'
        cache_expiration_time = datetime.timedelta(seconds=10)
        cache_capacity = 5

# on the first call it will go to the database but cache the result (use_cache=True)
samples = await Sample.find(num>10, use_cache=True).to_list()

# on the second - it will use not use the cache
samples = await Sample.find(num>10).to_list()

# on the third it will use the cache 
samples = await Sample.find(num>10, use_cache=True).to_list()

Again, the reason for this request is that we're finding it challenging to ensure that we ignore_cache=True is set everywhere we need it to be. From a security perspective, we'd rather forget to use the cache than the other way around.