To ensure that the initializer is called before any other code. This is as close to a global init hook as I can find.
- Pester source code moved to `test/Pester`, deleted `ext-src`. - Pester tests (.ps1 files) moved to `test/powershell` - xUnit tests (.cs files) moved to `test/csharp` - Third-party script test moved to `test/shebang`