feat: add matchspec caching

[nichmor]

Overview

This PR adds ability to load already existing tool from the disk.

So if previously we installed boltons==1.0.0, and now we are requesting boltons *, we will preload it.
if we request boltons >= 1.1.0, we will install a new one.
More details are inside the Matches trait : https://github.com/conda/rattler/blob/main/crates/rattler_conda_types/src/match_spec/mod.rs#L364

it also add a new clean command for cache, pixi clean cache --tool to clean build tools envs.

How to test it:

• remove rattler/cache/cached-build-tool-envs-v0 if exist.
• run pixi install -vvv for rich_example. You will see in tracing::debug not found any existing environment message, and also cached-build-tool-envs-v0 should now have a folder for installed tool.
• run again pixi install -vvv . You will see now reusing existing environment in and no new folders should be in cached-build-tool-envs-v0.
• change build-backend in pixi for this build-backend = { name = "pixi-build-python", version = "<0.1.0dev20241203154923" }. This will make pixi to search for older pixi, that don't satisfisy already installed one.
  run pixi install -vvv and now you will see not found any existing environment for and a new folder for this new tool should be in cached-build-tool-envs-v0.