Numerous fixes + a new command

+= ConvertTo-Zip - autodetects unrar, prefers it on 7-zip - resolves
    issues with some RAR extraction methods 7-zip does not support
+= Invoke-ExpressionEx - Added suppot for -WhatIf switch
++ Move-3Way - folder content comparative duplication
    was written to normalize a comics media folder
== Moved aliases to base, they were wrongly created in docker.

Setup-ScriptEnv.ps1

@@ -134,6 +134,7 @@ function Invoke-ExpressionEx {
     [switch]$Force,
     [string]$Function,
     [switch]$MarshalOutput,
+    [string[]]$sudoArgs,
     [Parameter(Position = 1, ValueFromRemainingArguments = $true)]
     [string[]]$expr
 )
@@ -157,7 +158,11 @@ function Invoke-ExpressionEx {
                 if ( "$sudo_exec" -match 'not found' ) { $sudo_exec = [string]::Empty }
             }
             if ( $sudo_exec ) {
-                & $sudo_exec $sudo_cmd
+                if( [bool]$WhatIfPreference.IsPresent ) {
+                    Write-Host "What if: using sudo [$sudo_exec] to run [$sudo_cmd]"
+                } else {
+                    & $sudo_exec "$sudoArgs" $sudo_cmd
+                }
             }
             else {
                 Write-Error "Didn't find a known sudo command"
@@ -165,7 +170,12 @@ function Invoke-ExpressionEx {
         }
 
         if ( $PSVersionTable.Platform -eq 'Unix' ) {
-            /usr/bin/env sudo "--preserve-env" $(Get-PowerShellPath) "-noprofile" "-EncodedCommand" $(ConvertTo-Base64 $sudo_cmd)
+            if( [bool]$WhatIfPreference.IsPresent ) {
+                Write-Host "What if: passing encoded command to powershell [$sudo_cmd]"
+            } else {
+                if( -not $sudoArgs ) { $sudoArgs = @( "--preserve-env" ) }
+                /usr/bin/env sudo $sudoArgs $(Get-PowerShellPath) "-noprofile" "-EncodedCommand" $(ConvertTo-Base64 $sudo_cmd)
+            }
         }
         else {
             $local:currentIdenity = [System.Security.Principal.WindowsIdentity]::GetCurrent()
@@ -224,7 +234,11 @@ function Invoke-ExpressionEx {
     }
 
     Write-Verbose "Perofrming the following expression in-line:`n{$($expr -join ' ')}"
-    Invoke-Expression "$expr"
+    if( [bool]$WhatIfPreference.IsPresent ) {
+        Write-Host "What if: Invoke-ExpressionEx executing [$expr]"
+    } else {
+        Invoke-Expression "$expr"
+    }
 }
 
 function Test-IsAdmin {