CI: Add program and all extra steps (solana-program#13)

* CI: Add program and all extra steps

#### Problem

The token program now lives in its program-specific repo, but no part of
it is being exercised by CI.

#### Summary of changes

Integrate the token program properly into CI. This includes:

* add it to the Cargo workspace, and removing spl-token-client, since
  it's currently empty
* run lint / format / test on the program
* run spellcheck / audit / semver checks on the Rust packages
* move rust scripts to `scripts/rust` and make them reusable
* update to Solana 2.1 and proper rust toolchains

* Move JS scripts around, build program too

Author: joncinque

p-token/Cargo.toml

@@ -2,11 +2,10 @@
 name = "spl-token"
 version = "7.0.0"
 description = "Solana Program Library Token"
-authors = ["Solana Labs Maintainers <maintainers@solanalabs.com>"]
-repository = "https://github.com/solana-labs/solana-program-library"
+authors = ["Anza Maintainers <maintainers@anza.xyz>"]
+repository = "https://github.com/solana-program/token"
 license = "Apache-2.0"
 edition = "2021"
-exclude = ["js/**"]
 
 [features]
 no-entrypoint = []
@@ -36,3 +35,6 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [lints]
 workspace = true
+
+[package.metadata.solana]
+program-id = "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"