feat(tools): merge some tools into the air CLI tool (#509)

* feat(tools): merge some tools into the `air` CLI tool

`air-beautify` and `air-trace` are merged into a single `air` tool.  Its
crate name is `fluence-air-cli` as otherwise it confilicts with `air`
interpreter crate.  The tool has subcommands `beautify`, `run`
and `stats`.

* Add one-letter aliases to `air` CLI subcommands

+ `air beautify` => `air b`
+ `air run` => `air r`
+ `air stats` => `air s`

---------

Co-authored-by: Mike Voronov <michail.vms@gmail.com>

crates/air-lib/lambda/parser/Cargo.toml

@@ -5,7 +5,8 @@ version = "0.1.0"
 authors = ["Fluence Labs"]
 edition = "2018"
 license = "Apache-2.0"
-publish = false
+repository = "https://github.com/fluencelabs/aquavm"
+documentation = "https://docs.rs/air-lambda-parser"
 keywords = ["fluence", "air", "parser", "lalrpop"]
 categories = ["wasm"]