Merge updates to current upstream

[GenerelSchwerz]

No description provided.

[GenerelSchwerz]

Re-visiting this.

I've merged a few various PRs into this fork, including: #3834 and @bindotmasterpro 's fork.

[GenerelSchwerz]

All tests pass.

Improvements include:

• Overall better physics implementation (support for pose updates, better modern version support, inter-operability with pre-existing prismarine-physics).
• Match rotational interpolation to actual physics of the bot, removing the desync of sent packet data and known yaw/pitch data.
• Better rounding for positional updates sent out (more closely matches java implementation)
• support for velocity proxies, mentioned previously
• minor tweaks/improvements to various components of mineflayer.

At this point, I cannot separate this PR into other sections since I've been maintaining my own fork. This PR is fully up-to-date with current upstream and passes all tests.

[rom1504]

please fix conflicts