feat: setup MemCacheStore

[jiacai2050]

Which issue does this PR close?

Closes #

Rationale for this change

After #415, MemCachedStore is implemented, but not used, this PR add it to setup

What changes are included in this PR?

1. Remove old data cache
2. Add new mem cache options

Are there any user-facing changes?

No

How does this change test

Start server locally with config below

bind_addr = "127.0.0.1"
http_port = 5440
grpc_port = 8831
log_level = "debug"

[analytic.storage]
mem_cache_capacity = '1G'
mem_cache_partition_bits = 0

[analytic.storage.object_store]
type = "Local"
data_path = "/tmp/xx"

[analytic]
wal_path = "/tmp/xx"
sst_meta_cache_cap = 10000
scan_batch_size = 10000

[[static_route.topology.schema_shards]]
schema = 'public'
auto_create_tables = true

[[static_route.topology.schema_shards.shard_views]]
shard_id = 0

[static_route.topology.schema_shards.shard_views.endpoint]
addr = "127.0.0.1"
port = 8831

[Rachelint]

LGTM.