Convert ShouldBeErrorId to Should -Throw -ErrorId in PowerShell tests.
Get rid of try { } catch { } formula to assert that errors were thrown.
Small fixes in tests to obey the new Pester -Parameter syntax.
Based on standard practices, we need to have a copyright and license notice at the top of each source file. Removed existing copyrights and updated/added copyright notices for .h, .cpp, .cs, .ps1, and .psm1 files.
Updated module manifests for consistency to have Author = "PowerShell" and Company = "Microsoft Corporation". Removed multiple line breaks.
Separate PR coming to update contribution document for new source files: #6140
Manually reviewed each change.
Fix#6073
1. The individual test files (.ps1) in `/test/powershell/engine` are moved to the corresponding subfolders.
2. The test asset file `test/powershell/Common/TestTypeFile.ps1xml` is moved to `test/powershell/Common/engine/Api/assets/` so that it's next to the test that is using the file.
Jorge Suarez