Update routing data for commands.

[nihohit]

The choices were based on the request_policy tip from the COMMAND output.

[nihohit]

tasks for after this PR:
implement multi-shard commands
implement response policies

[jaymell]

I think this looks good! Can you list out which commands you've removed from the routing rules? I think they are all appropriate for random routing?

[nihohit]

readonly commands:
added:
LOLWUT
MEMORY USAGE
OBJECT ENCODING
OBJECT FREQ
OBJECT IDLETIME
OBJECT REFCOUNT
XINFO CONSUMERS
XINFO GROUPS
XINFO STREAM

(the OBEJCT & XINFO commands were expanded from only OBJECT & XINFO in the old version)
removed:
CLIENT
ECHO
LASTSAVE
STRALGO

AllNodes routing -
all removed, except for SLOWLOG & CONFIG SET
DBSIZE, PING, INFO, KEYS were moved to AllMasters list.
BGREWRITEAOF, CLIENT LIST, ECHO, other CONFIG commands, other CLIENT commands, LASTSAVE, don't have explicit routing now.

AllMasters:
SCRIPT FLUSH, SCRIPT LOAD, have been moved to AllNodes. SCRIPT DEBUG, SCRIPT HELP now don't have explicit routing.