FTQ rpc call, v3.18.0 again

[dimalit]

Note: in results, transactions belonging to same sender go together, ordered by nonce increase. In case of FTQ overflow, last transaction from 1st sender will be dropped.

Testing:

1 JsonRpcSuite/mtm_import_future_txs

2 Manual testing sequence:

1. Add balance for your account to skaled's config.
2. Run skaled with --enable-debug-behavior-apis
3. Send transaction with too big nonce.
4. Send curl -X POST --data '{"id":4,"jsonrpc":"2.0","method":"debug_getFutureTransactions","params":[]}'
5. See your transaction.
6. Repeat the same without --enable-debug-behavior-apis, METHOD_NOT_FOUND error should be returned.

Example answer:

{
   "id":4,
   "jsonrpc":"2.0",
   "result":[
      {
         "from":"0xf15f970e370486d5137461c5936dc6019898e6c8",
         "gas":"0x5208",
         "gasPrice":"0x186a0",
         "hash":"0xf075c0d864e4eb73218480b83ff231a74846acaf58136f310f2241fd4e8beb8b",
         "nonce":"0x14",
         "r":"0x5d18118a4f1d559af9bcd6728066da2b1786ae6acd9d3785a93b2561706f2f48",
         "s":"0x29e5a3fef45fd3d606aeac4e602eeb7389d50af6f708179b226eed5252e702d9",
         "sighash":"0xa075eb68e97bd62f14315ccd9faab3d0c3119db609a997e568c52387042ffae7",
         "to":"0xf15f970e370486d5137461c5936dc6019898e6c8",
         "v":"0x1",
         "value":"0x0"
      }
   ]
}

Example error:
{"error":{"code":-32601,"message":"METHOD_NOT_FOUND: The method being requested is not available on this server"},"id":4,"jsonrpc":"2.0"}

[github-actions]

SUGGESTIONS BEFORE MERGE:

1. Build custom container here: https://github.com/skalenetwork/skaled/actions?query=workflow%3A%22Custom+Docker+and+Binary%22
2. Test it here: https://github.com/skalenetwork/skale-ci-integration_tests/actions?query=workflow%3A%22Skaled+Nightly+Tests%22
3. Edit VERSION file appropriately to your changes!
   See https://skalelabs.atlassian.net/wiki/spaces/SKALE/pages/2444951553/Branching+instructions

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (a93c503) 45.56% compared to head (1e79fdf) 45.56%.
Report is 4 commits behind head on v3.18.0.

Additional details and impacted files

@@             Coverage Diff             @@
##           v3.18.0    #1776      +/-   ##
===========================================
- Coverage    45.56%   45.56%   -0.01%     
===========================================
  Files          358      356       -2     
  Lines        51807    51762      -45     
===========================================
- Hits         23608    23584      -24     
+ Misses       28199    28178      -21     

[DmytroNazarenko]

1. Please, add unit test
2. Update description with information about tx sorting

[dimalit]

UPD For some reason, test_stop.py::test_double_stop functional test fails on this branch. When trying to reproduce it locally - everything works ok. So, probably, this should be test problem, not build.