chore(tvix/tools): move weave to //users/edef

This is not a core Tvix tool, it's a tool that uses a Tvix component.

Change-Id: I705f2c4ab87f1512e005007c933e16b84ed4279f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12605
Reviewed-by: edef <edef@edef.eu>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>

users/edef/weave/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "weave"
+version = "0.1.0"
+edition = "2021"
+
+[workspace]
+members = ["."]
+
+# TODO(edef): cut down on required features, this is kind of a grab bag right now
+[dependencies]
+anyhow = { version = "1.0.79", features = ["backtrace"] }
+hashbrown = "0.14.3"
+nix-compat = { version = "0.1.0", path = "../../../tvix/nix-compat" }
+owning_ref = "0.4.1"
+rayon = "1.8.1"
+tokio = { version = "1.36.0", features = ["full"] }
+
+[dependencies.polars]
+version = "0.36.2"
+features = ["parquet"]