Initial rebrand: @polkadot -> @pezkuwi (3 packages)

- Package namespace: @polkadot/dev -> @pezkuwi/dev
- Repository: polkadot-js/dev -> pezkuwichain/pezkuwi-dev
- Author: Pezkuwi Team <team@pezkuwichain.io>

Packages:
- @pezkuwi/dev (build tools, linting, CI scripts)
- @pezkuwi/dev-test (test runner)
- @pezkuwi/dev-ts (TypeScript build)

Upstream: polkadot-js/dev v0.83.3

packages/dev-test/README.md

@@ -0,0 +1,32 @@
+# @pezkuwi/dev-test
+
+This is a very basic Jest-compatible environment that could be used alongside tests. The need for this came from replacing Jest with `node --test` without rewriting all assertions.
+
+It provides the following -
+
+1. Browser `window`, `document`, `navigator` (see usage for browser-specific path)
+2. `jest` functions, specifically `spyOn` (not comprehensive, some will error, some witll noop)
+3. `expect` functions (not comprehensive, caters for specific polkadot-js usage)
+
+
+## Usage
+
+On thing to note is that `node:test` is still rapidly evolving - this includes the APIs and features. As such this requires at least Node 18.14, however 18.15+ is recommended.
+
+The entry points are different based on the environment you would like to operate in. For a browser-like environment,
+
+```
+node --require @pezkuwi/dev-test/browser ...
+```
+
+or for a basic describe/expect/jest-only global environment
+
+```
+node --require @pezkuwi/dev-test/node ...
+```
+
+The `...` above indicates any additional Node options, for instance a full command could be -
+
+```
+node --require @pezkuwi/dev-test/node --test something.test.js
+```