Provide completion for cache name in configuration file

[fbricon]

If your code contains

@CacheResult(cacheName = "foo")

Then completion for cache configuration should be able to automatically propose the proper names in application.properties:

quarkus.cache.caffeine.foo.expire-after-access
quarkus.cache.caffeine.foo.expire-after-write
quarkus.cache.caffeine.foo.maximum-size
quarkus.cache.caffeine.foo.initial-capacity

instead of {*}:

See https://quarkus.io/guides/cache#caffeine-configuration-properties