Single edge crate (#8173)

* Fixups of amalgamator

Fix issues that break `qdrant-edge` build process:
- `use … as segment;` - this causes `ast-grep` rules to replace wrong
  paths. So, rename to avoid collisions.
- `#[macro_use]` and `extern crate` required be in the top-level
  `lib.rs`.
- `format!("…", crate::something::…)` - `ast-grep` can't fix paths
  inside macros. Fixed by moving `crate::something::…` out of the macro.

* Add lib/edge/publish workspace and amalgamation script

* Move `lib/edge/examples` into `lib/edge/publish/` workspace

And fix them to use the generated `qdrant-edge` crate.

* Add github workflow

* Cleanup `qdrant-edge` public API

Removes empty modules. Checked by `cargo doc`.

lib/edge/python/src/info.rs

@@ -4,7 +4,7 @@ use std::mem;
 
 use bytemuck::TransparentWrapper;
 use derive_more::Into;
-use edge::info::ShardInfo;
+use edge::ShardInfo;
 use pyo3::prelude::*;
 use segment::json_path::JsonPath;
 use segment::types::PayloadIndexInfo;