[3.1 -> main] Fix issue with current block not sent to SHiP clients

[heifner]

head not updated until after accepted_block signal is emitted. This prevents controller fetch_block_by_number from returning the current block signaled. Work around this issue by using the signaled block_state and get_block_id_for_num method.

Added new SHiP streamer client that will stream blocks from SHiP. It doesn't support ABI currently, so blocks, traces, and deltas are all in hex. Added new python integration test that uses the SHiP streamer to verify blocks are returned from SHiP.

Example output from ship_streamer:

./tests/ship_streamer --start-block-num 253185406 --end-block-num 253185407 --fetch-block --fetch-traces
[
{ "get_blocks_result_v0":
{
    "head": {
        "block_num": 253185721,
        "block_id": "0F174EB908AAB71C735163B7AE4419A6B63F56654A71FBD864F2E55D72086AC7"
    },
    "last_irreversible": {
        "block_num": 253185396,
        "block_id": "0F174D7420F6888F4A8BAD6FA326732CB1A77574E55908AFE2496916B88A787D"
    },
    "this_block": {
        "block_num": 253185406,
        "block_id": "0F174D7E0F5833075061B57999239235417D3C853754F355B6BB62772AFED7B4"
    },
    "prev_block": {
        "block_num": 253185405,
        "block_id": "0F174D7D1724709B1438732ACEDDBFFD587CD5D9D5C54FBE381C174CB2B28A1F"
    },
    "block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
    "traces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
    "deltas": null
}
}
,
{ "get_blocks_result_v0":
{
    "head": {
        "block_num": 253185721,
        "block_id": "0F174EB908AAB71C735163B7AE4419A6B63F56654A71FBD864F2E55D72086AC7"
    },
    "last_irreversible": {
        "block_num": 253185396,
        "block_id": "0F174D7420F6888F4A8BAD6FA326732CB1A77574E55908AFE2496916B88A787D"
    },
    "this_block": {
        "block_num": 253185407,
        "block_id": "0F174D7F3C694D3EE83B3346D61566585D96A9BD45FE10FF6EE5C8D3B14D0001"
    },
    "prev_block": {
        "block_num": 253185406,
        "block_id": "0F174D7E0F5833075061B57999239235417D3C853754F355B6BB62772AFED7B4"
    },
    "block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
    "traces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
    "deltas": null
}
}
]

Merges #472 into main.
Also pulls in #487 into main.

[linh2931]

Thanks @heifner for pulling #487. Next time I will do release branch and main PRs at the same time.