docs: describe dev-env setup for Windows machines (#17467)

* docs: describe dev-env setup for Windows machines

Windows machines do not have the required patch command available.
The added step explains how to install the package on Windows.

Refs #17456

* docs: improve description of Bazel for dev-env setup

Refs #17456

* docs: change Material to angular/components

Author: JanMalch

DEV_ENVIRONMENT.md

@@ -2,16 +2,20 @@
 
 1. Make sure you have `node` installed with a version at _least_ 10.0.0 and `yarn` with a version
    of at least 1.10.0. We recommend using `nvm` to manage your node versions.
-2. Run `yarn global add gulp` to install gulp.
-3. Fork the `angular/components` repo on GitHub.
-4. Clone your fork to your machine with `git clone`.
+2. angular/components uses Bazel which requires certain Bash and UNIX tools.
+   - On Windows: Follow the [instructions](https://docs.bazel.build/versions/master/install-windows.html#5-optional-install-compilers-and-language-runtimes)
+   to install [`MSYS2`](https://www.msys2.org/) and the listed "Common MSYS2 packages".
+   Afterwards add `C:\msys64\usr\bin` to the `PATH` environment variable.
+3. Run `yarn global add gulp` to install gulp.
+4. Fork the `angular/components` repo on GitHub.
+5. Clone your fork to your machine with `git clone`.
    Recommendation: name your git remotes `upstream` for `angular/components`
    and `<your-username>` for your fork. Also see the [team git shortcuts](https://github.com/angular/components/wiki/Team-git----bash-shortcuts).
-5. From the root of the project, run `yarn`.
+6. From the root of the project, run `yarn`.
 
 
-To build Material in dev mode, run `gulp material:build`.
-To build Material in release mode, run `gulp material:build-release`
+To build angular/components in dev mode, run `gulp material:build`.
+To build angular/components in release mode, run `gulp material:build-release`
 
 To bring up a local server, run `yarn dev-app`. This will automatically watch for changes
 and rebuild. The browser should refresh automatically when changes are made.