monitor bloom filter memory usage

[avikivity]

Please make sure that this is a feature request.

System information

• Scylla version (you are using): any
• Are you willing to contribute it (Yes/No): no

Describe the feature and the current behavior/state.

I want the memory panel to include this expression: sum(scylla_sstables_bloom_filter_memory_size) by (instance, shard)

Who will benefit with this feature?

People who have large bloom filters

Any Other info.

The universe is almost 14 billion years old

[mykaul]

Already implemented via #2223 , no?

[amnonh]

Closing as duplicate of #2219, please re-open if something is missing