Kaspawallet: implement fee calcs, centralize constant and logic

[D-Stacks]

1. Move fee calcs, logic and constants to libkaspawallet
2. Allow for functions to calculate transaction(s) fees

[codecov[bot]]

Codecov Report

Merging #2107 (4c10273) into dev (b9093d5) will decrease coverage by 0.08%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##              dev    #2107      +/-   ##
==========================================
- Coverage   59.19%   59.10%   -0.09%     
==========================================
  Files         678      679       +1     
  Lines       32831    32854      +23     
==========================================
- Hits        19434    19419      -15     
- Misses      10596    10629      +33     
- Partials     2801     2806       +5     

Impacted Files	Coverage Δ
...allet/daemon/server/create_unsigned_transaction.go	0.00% <0.00%> (ø)
...pawallet/daemon/server/external_spendable_utxos.go	0.00% <0.00%> (ø)
cmd/kaspawallet/daemon/server/split_transaction.go	7.64% <0.00%> (ø)
cmd/kaspawallet/libkaspawallet/fees.go	0.00% <0.00%> (ø)
cmd/kaspawallet/parse.go	0.00% <0.00%> (ø)
cmd/kaspawallet/sweep.go	0.00% <0.00%> (ø)
...tructure/network/rpcclient/rpc_on_chain_changed.go	52.38% <0.00%> (-14.29%)	:arrow_down:
...k/netadapter/server/grpcserver/connection_loops.go	56.89% <0.00%> (-5.18%)	:arrow_down:
...ructure/network/rpcclient/grpcclient/grpcclient.go	76.56% <0.00%> (-4.69%)	:arrow_down:
infrastructure/network/netadapter/router/route.go	72.72% <0.00%> (-4.55%)	:arrow_down:
... and 2 more

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[D-Stacks]

Converting back to draft: Makes more sense to optionally return the whole tx, this can be used by clients to send, and get tx data for post-analysis, no reason to limit this feature in the Send call to just return fees.

[D-Stacks]

I will split this into two dependent prs, one for feecalcs, one for sending back whole tx data, seems to make the most sense.