Add getMemoryLoad()

[Sjors]

This adds getMemoryLoad() which is introduced by bitcoin/bitcoin#33922.

Based on:

• Add submitBlock(), misc. test improvements #12

To be merged after:

• mining: add getMemoryLoad() and track template non-mempool memory footprint bitcoin/bitcoin#33922
  • CI branch needs to be switched back to master

[Sjors]

Rebased after #9.

[Sjors]

Rebased after #14.

[Sansh2356]

@Sjors After the recent updates to init.capnp and mining.capnp, will the corresponding updates on the bitcoin-core-sv2 side (under sv2-apps) be made after the next stable release of this crate ?

[Sjors]

@Sansh2356 I think the sequence is:

1. Bitcoin Core ships v31.0
2. We create a 31.x branch here
3. Downstream projects like bitcoin-core-sv2 switch to the 31.x branch

There might already be some work in progress pull requests for testing v31.0 release candidates, cc @plebhash. Definitely a good idea to test.

[Sansh2356]

@Sansh2356 I think the sequence is:

1. Bitcoin Core ships v31.0

2. We create a 31.x branch here

3. Downstream projects like `bitcoin-core-sv2` switch to the `31.x` branch

There might already be some work in progress pull requests for testing v31.0 release candidates, cc @plebhash. Definitely a good idea to test.

Thanks, got the issue i was looking for stratum-mining/sv2-apps#318 .

[Sjors]

Rebased and updated to match the latest Bitcoin Core version. PR is temporarily based on #12 until that lands.