Vendor helgoboss/helgobox (ReaLearn) as basis for custom UI fork

Stripped upstream git history; starting point for replacing the native
SWELL/Win32 mapping UI with something more suited to bulk editing.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

plugin-reaper-realearn/base/Cargo.toml

@@ -0,0 +1,45 @@
+[package]
+name = "base"
+version = "0.1.0"
+authors = ["Benjamin Klum <benjamin.klum@helgoboss.org>"]
+edition = "2021"
+publish = false
+
+[dependencies]
+# Own
+reaper-high.workspace = true
+reaper-medium.workspace = true
+reaper-low.workspace = true
+reaper-rx.workspace = true
+helgobox-api.workspace = true
+
+# 3rd-party
+serde.workspace = true
+serde_json.workspace = true
+xxhash-rust.workspace = true
+crossbeam-channel.workspace = true
+futures-timer.workspace = true
+once_cell.workspace = true
+tracing.workspace = true
+metrics.workspace = true
+ascii.workspace = true
+enigo.workspace = true
+# For getting current mouse state
+device_query.workspace = true
+derive_more.workspace = true
+either.workspace = true
+logos.workspace = true
+anyhow.workspace = true
+thiserror.workspace = true
+camino.workspace = true
+indexmap.workspace = true
+futures.workspace = true
+tokio.workspace = true
+fragile.workspace = true
+
+[target.'cfg(target_os = "macos")'.dependencies]
+# For not letting device_query panic when macOS accessibility permissions not granted
+macos-accessibility-client.workspace = true
+
+[lints.clippy]
+enum_glob_use = "deny"