add "GetMempoolEntriesByAddresses" to kaspad RPC.

[D-Stacks]

implements #1703
needed to fix #1984

Also hoping it will lead to other transaction and wallet improvements.

[codecov]

Codecov Report

Merging #2022 (ab012e6) into dev (beb038c) will increase coverage by 0.06%.
The diff coverage is 74.56%.

@@            Coverage Diff             @@
##              dev    #2022      +/-   ##
==========================================
+ Coverage   59.39%   59.46%   +0.06%     
==========================================
  Files         671      675       +4     
  Lines       32028    32201     +173     
==========================================
+ Hits        19023    19147     +124     
- Misses      10276    10306      +30     
- Partials     2729     2748      +19     

Impacted Files	Coverage Δ
app/appmessage/message.go	71.42% <ø> (ø)
app/rpc/rpc.go	63.88% <ø> (ø)
cmd/kaspactl/commands.go	0.00% <ø> (ø)
...rk/rpcclient/rpc_get_mempool_entries_by_address.go	45.45% <45.45%> (ø)
...ork/netadapter/server/grpcserver/protowire/wire.go	42.80% <66.66%> (+0.36%)	⬆️
.../protowire/rpc_get_mempool_entries_by_addresses.go	69.04% <69.04%> (ø)
...pc/rpchandlers/get_mempool_entries_by_addresses.go	85.71% <85.71%> (ø)
...appmessage/rpc_get_mempool_entries_by_addresses.go	100.00% <100.00%> (ø)
app/protocol/flows/v5/blockrelay/block_locator.go	52.94% <0.00%> (-11.77%)	⬇️
...ain/consensus/database/binaryserialization/hash.go	69.56% <0.00%> (-8.70%)	⬇️
... and 2 more

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[someone235]

I think it makes more sense to drop this if. This way the index for each address entries will be predictable

[D-Stacks]

I suppose this will result in each address having a MempoolEntryByAddress, even if sending / receving is empty. I would like to imitate the behaviour of GetUtxosByAddressess, to have some sort of standard. which i think leaves out all addresses that don't have utxo's. but i will look into it.

[D-Stacks]

I added a comment to reflect this discussion. The if statement will make this rpc call mimic GetUtxoEntriesByAddresses. Personally, i think all ByAddresses calls should follow the same convention / standard regarding addresses for which the call cannot find an "entry", in this case it would require the if statement, to exclude the address completely from the entries. But, if you insist I will happily oblige. Just wish to raise this point as a counter argument, before potentially changing this.