Add awscli (#610)

* uppdate/add awscli

* change awscli to aws and fix for aws version

* concatenate install and validate script files

* update image templates

* add aws to the path

Co-authored-by: Dibir Magomedsaygitov <v-dimago@microsoft.com>

images/win/scripts/Installers/Install-AWS.ps1

@@ -0,0 +1,31 @@
+################################################################################
+##  File:  Install-awscli.ps1
+##  Desc:  Install awscli
+################################################################################
+
+choco install awscli -y
+
+$env:PATH =$env:PATH + ";$Env:Programfiles\Amazon\AWSCLIV2"
+
+$command = Get-Command -Name 'aws'
+
+if ($command)
+{
+    Write-Host "awscli on path"
+}
+else
+{
+    Write-Host 'awscli is not on path'
+    exit 1
+}
+
+# Adding description of the software to Markdown
+$SoftwareName = "AWS CLI"
+
+$version = (aws --version).Split(" ")[0].Replace("/"," ")
+
+$Description = @"
+_Version:_ $version<br/>
+"@
+
+Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description