PowerShellUtility.ps1

Function Ensure-Module {
    Param([string]$name)

    if (-not (Get-Module -name $name)) {
        if (Get-Module -ListAvailable |? { $_.name -eq $name }) {
            Import-Module -Name $name
            $true #if available, then import
        }
    } else {
        $false #not loaded, not available
    } else {
        $true #already loaded
    }
}