Update copyright and license headers (#6134)

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

Author: SteveL-MSFT

build.psm1

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 # On Unix paths is separated by colon
 # On Windows paths is separated by semicolon
 $script:TestModulePathSeparator = [System.IO.Path]::PathSeparator
@@ -873,7 +876,6 @@ function Get-PSOutput {
     }
 }
 
-
 function Get-PesterTag {
     param ( [Parameter(Position=0)][string]$testbase = "$PSScriptRoot/test/powershell" )
     $alltags = @{}
@@ -1362,7 +1364,6 @@ function Test-PSPesterResults
     }
 }
 
-
 function Start-PSxUnit {
     [CmdletBinding()]param(
         [string] $SequentialTestResultsFile = "SequentialXUnitResults.xml",
@@ -1430,7 +1431,6 @@ function Start-PSxUnit {
     }
 }
 
-
 function Install-Dotnet {
     [CmdletBinding()]
     param(
@@ -1914,7 +1914,6 @@ function Start-ResGen
     }
 }
 
-
 function Find-Dotnet() {
     $originalPath = $env:PATH
     $dotnetPath = if ($Environment.IsWindows) { "$env:LocalAppData\Microsoft\dotnet" } else { "$env:HOME/.dotnet" }
@@ -1972,7 +1971,6 @@ function Convert-TxtResourceToXml
     }
 }
 
-
 function script:Use-MSBuild {
     # TODO: we probably should require a particular version of msbuild, if we are taking this dependency
     # msbuild v14 and msbuild v4 behaviors are different for XAML generation
@@ -1991,7 +1989,6 @@ function script:Use-MSBuild {
     Set-Alias msbuild $frameworkMsBuildLocation -Scope Script
 }
 
-
 function script:log([string]$message) {
     Write-Host -Foreground Green $message
     #reset colors for older package to at return to default after error message on a compilation error
@@ -2534,7 +2531,6 @@ function Restore-PSModule
     }
 }
 
-
 $script:RESX_TEMPLATE = @'
 <?xml version="1.0" encoding="utf-8"?>
 <root>

demos/Apache/Apache/Apache.psm1

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 #Region utility functions
 
 $global:sudocmd = "sudo"
@@ -216,7 +219,6 @@ Function Restart-ApacheHTTPServer{
 
 }
 
-
 Function Get-ApacheModule{
     $cmd = GetApacheCmd
 

demos/Apache/apache-demo.ps1

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 Import-Module $PSScriptRoot/Apache/Apache.psm1
 
 #list Apache Modules

demos/Azure/Azure-Demo.ps1

@@ -1,4 +1,7 @@
-### The techniques used in this demo are documented at
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+### The techniques used in this demo are documented at
 ### https://azure.microsoft.com/en-us/documentation/articles/powershell-azure-resource-manager/
 
 ### Import AzureRM.Profile.NetCore.Preview and AzureRM.Resources.NetCore.Preview modules.

demos/DSC/dsc-demo.ps1

@@ -1,3 +1,5 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
 
 #Get Distro type and set distro-specific variables
 $OSname = Get-Content "/etc/os-release" |Select-String -Pattern "^Name="

demos/Docker-PowerShell/Docker-PowerShell.ps1

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 # This is a short example of the Docker-PowerShell module. The same cmdlets may be used to manage both local & remote machines, including both Windows & Linux hosts
 # The only difference between them is the example container image is pulled & run.
 
@@ -26,4 +29,4 @@ Get-Container | Where-Object State -eq "exited" | Remove-Container
 Remove-ContainerImage hello-world
 
 # And list the container images left on the container host
-Get-ContainerImage
+Get-ContainerImage

demos/SystemD/SystemD/SystemD.psm1

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 Function Get-SystemDJournal {
     [CmdletBinding()]
     param (
@@ -15,4 +18,4 @@ Function Get-SystemDJournal {
         {
                 $Result
         }
-}
+}

demos/SystemD/journalctl-demo.ps1

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 Import-Module $PSScriptRoot/SystemD/SystemD.psm1
 
 #list recent journal events

demos/crontab/CronTab/CronTab.psd1

@@ -13,10 +13,10 @@ CompatiblePSEditions = @('Core')
 GUID = '508bb97f-de2e-482e-aae2-01caec0be8c7'
 
 # Author of this module
-Author = 'Microsoft'
+Author = 'PowerShell'
 
 # Company or vendor of this module
-CompanyName = 'Unknown'
+CompanyName = 'Microsoft Corporation'
 
 # Copyright statement for this module
 Copyright = 'Copyright (c) Microsoft Corporation. All rights reserved.'

demos/crontab/CronTab/CronTab.psm1

@@ -1,3 +1,5 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
 
 using namespace System.Collections.Generic
 using namespace System.Management.Automation