Additional cleanup to support tokens UI

[awrichar]

Part of #218

[codecov-commenter]

Codecov Report

Merging #313 (3089b5f) into main (ce179d5) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              main      #313    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          224       231     +7     
  Lines        12374     12542   +168     
==========================================
+ Hits         12374     12542   +168     

Impacted Files	Coverage Δ
internal/apiserver/route_get_token_accounts.go	100.00% <ø> (ø)
internal/apiserver/route_get_token_pool_by_name.go	100.00% <ø> (ø)
...nternal/apiserver/route_get_token_pools_by_type.go	100.00% <ø> (ø)
...nal/apiserver/route_get_token_transfers_by_pool.go	100.00% <ø> (ø)
pkg/fftypes/event.go	100.00% <ø> (ø)
pkg/fftypes/message.go	100.00% <ø> (ø)
internal/apiserver/route_get_msg_by_id.go	100.00% <100.00%> (ø)
internal/apiserver/route_get_msgs.go	100.00% <100.00%> (ø)
...nternal/apiserver/route_get_token_account_pools.go	100.00% <100.00%> (ø)
...rnal/apiserver/route_get_token_accounts_by_pool.go	100.00% <100.00%> (ø)
... and 33 more

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[peterbroadhurst]

Looks great @awrichar - does feel more consistent with this use of the UUID