add UTXOs counting to GetBalanceByAddress request

[Aleoami]

So to see who's bought and who's mined coins, and maybe incentivize people to compound their balances seeing the huge number of funds' chunks

[codecov[bot]]

Codecov Report

Merging #2080 (5f5d91a) into dev (3908f27) will decrease coverage by 0.07%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##              dev    #2080      +/-   ##
==========================================
- Coverage   59.32%   59.25%   -0.08%     
==========================================
  Files         678      678              
  Lines       32594    32600       +6     
==========================================
- Hits        19337    19316      -21     
- Misses      10467    10489      +22     
- Partials     2790     2795       +5     

Impacted Files	Coverage Δ
app/appmessage/rpc_get_balance_by_address.go	0.00% <0.00%> (ø)
app/appmessage/rpc_get_balances_by_addresses.go	0.00% <ø> (ø)
app/rpc/rpchandlers/get_balance_by_address.go	0.00% <0.00%> (ø)
app/rpc/rpchandlers/get_balances_by_addresses.go	0.00% <0.00%> (ø)
...grpcserver/protowire/rpc_get_balance_by_address.go	0.00% <0.00%> (ø)
...cserver/protowire/rpc_get_balances_by_addresses.go	0.00% <0.00%> (ø)
app/protocol/flows/v5/blockrelay/block_locator.go	52.94% <0.00%> (-23.53%)	:arrow_down:
...ructure/network/rpcclient/grpcclient/grpcclient.go	76.56% <0.00%> (-4.69%)	:arrow_down:
infrastructure/network/netadapter/netadapter.go	75.58% <0.00%> (-4.66%)	:arrow_down:
infrastructure/network/netadapter/router/route.go	72.72% <0.00%> (-4.55%)	:arrow_down:
... and 3 more

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