chain-spec-builder: cleanup (#2174)

This PR removes:
-  `New`, `Generate`, `Edit` commands,
- `kitchensink` dependency
from the `chain-spec-builder` util.

New `convert-to-raw`, `update-code` commands were added.

Additionally renames the `runtime` command (which was added in #1256) to
`create`.

---------

Co-authored-by: Sebastian Kunert <skunert49@gmail.com>
Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: command-bot <>

Cargo.lock

@@ -18315,18 +18315,11 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 name = "staging-chain-spec-builder"
 version = "2.0.0"
 dependencies = [
- "ansi_term",
  "clap 4.4.6",
- "kitchensink-runtime",
  "log",
- "rand 0.8.5",
  "sc-chain-spec",
- "sc-keystore",
  "serde_json",
- "sp-core",
- "sp-keystore",
  "sp-tracing 10.0.0",
- "staging-node-cli",
 ]
 
 [[package]]