Add powershell config

Microsoft.PowerShell_profile.ps1

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+Import-Module PSReadLine
+Set-PSReadlineOption -EditMode Emacs
+Set-PSReadlineKeyHandler -Key Tab -Function Complete
+# Clipboard interaction is bound by default in Windows mode, but not Emacs mode.
+Set-PSReadlineKeyHandler -Key Shift+Ctrl+C -Function Copy
+Set-PSReadlineKeyHandler -Key Ctrl+V -Function Paste
+
+function tensorflowroot {set-location C:/Users/prs/work_projects/tensorflow/tensorflow}
+Set-Alias tr tensorflowroot
+
+function emacsshell {emacs -nw -Q $args}
+Set-Alias em emacsshell
+
+function mysearch {gci -r $args}
+Set-Alias se mysearch
+
+Set-Alias np "C:\Program Files (x86)\Notepad++\notepad++.exe"
+Set-Alias re runemacs
+
+function myls {dir | sort LastWriteTime}
+Set-Alias l myls
+
+# Chocolatey profile
+$ChocolateyProfile = "$env:ChocolateyInstall\helpers\chocolateyProfile.psm1"
+if (Test-Path($ChocolateyProfile)) {
+  Import-Module "$ChocolateyProfile"
+}