Create Add-ZertoPeerSite and tests

Tests/Public/Add-ZertoPeerSite.Tests.ps1

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+$moduleFileName = "ZertoApiWrapper.psm1"
+$filePath = (Split-Path -Parent $MyInvocation.MyCommand.Path) -replace 'Tests', 'ZertoApiWrapper'
+$fileName = (Split-Path -Leaf $MyInvocation.MyCommand.Path ) -replace '.Tests.', '.'
+$modulePath = $filePath -replace "Public", ""
+Import-Module $modulePath\$moduleFileName -Force
+
+$userName = "zerto\build"
+$password = ConvertTo-SecureString -String "ZertoBuild" -AsPlainText -Force
+$credential = New-Object -TypeName System.Management.Automation.PSCredential($userName, $password)
+
+# $credential = Import-Clixml -Path C:\ZertoScripts\Creds.xml
+$zertoServer = "192.168.1.100"
+$zertoPort = "7669"
+
+Describe "Add-ZertoPeerSite" {
+    it "file should exist" {
+        "$filePath\$fileName" | should exist
+    }
+    it "module should have a function called Add-ZertoPeerSite" {
+        get-command Add-ZertoPeerSite | should be $true
+    }
+}

ZertoApiWrapper/Public/Add-ZertoPeerSite.ps1

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+function Add-ZertoPeerSite {
+    [cmdletbinding( SupportsShouldProcess = $true )]
+    param(
+        [parameter(
+            Mandatory = $true,
+            HelpMessage = "Target Hostname or IP address to pair the localsite to."
+        )]
+        [string]$targetHost,
+        [Parameter(
+            HelpMessage = "Target communication port. Default is 9081"
+        )]
+        [int]$targetPort = 9081
+    )
+
+    begin {
+        $baseUri = "peersites"
+        $body = @{"HostName" = $targetHost; "Port" = $targetPort}
+    }
+
+    process {
+        if ($PSCmdlet.ShouldProcess("Pairing with Site $targetHost")) {
+            Invoke-ZertoRestRequest -uri $baseUri -body $($body | ConvertTo-Json) -method "POST"
+        }
+    }
+
+    end {
+        # Nothing to do
+    }
+}