SYNOPSIS
    Displays a progress dialog in a separate thread with an updateable custom message.
SYNTAX
    Show-InstallationProgress [[-StatusMessage] <String>] [[-WindowLocation] <String>] [[-TopMost] <Boolean>] [<CommonParameters>]
DESCRIPTION
    Create a WPF window in a separate thread to display a marquee style progress ellipse with a custom message that can be updated.
    The status message supports line breaks.
    The first time this function is called in a script, it will display a balloon tip notification to indicate that the installation has started (provided balloon tips are enabled in the 
    configuration).
PARAMETERS
    -StatusMessage <String>
        The status message to be displayed. The default status message is taken from the XML configuration file.
    -WindowLocation <String>
        The location of the progress window. Default: just below top, centered.
    -TopMost <Boolean>
        Specifies whether the progress window should be topmost. Default: $true.
    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer, PipelineVariable, and OutVariable. For more information, see 
        about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216). 
    -------------------------- EXAMPLE 1 --------------------------
    PS C:\>Show-InstallationProgress
    Uses the default status message from the XML configuration file.
    -------------------------- EXAMPLE 2 --------------------------
    PS C:\>Show-InstallationProgress -StatusMessage 'Installation in Progress...'
    -------------------------- EXAMPLE 3 --------------------------
    PS C:\>Show-InstallationProgress -StatusMessage "Installation in Progress...`nThe installation may take 20 minutes to complete."
    -------------------------- EXAMPLE 4 --------------------------
    PS C:\>Show-InstallationProgress -StatusMessage 'Installation in Progress...' -WindowLocation 'BottomRight' -TopMost $false
REMARKS
    To see the examples, type: "get-help Show-InstallationProgress -examples".
    For more information, type: "get-help Show-InstallationProgress -detailed".
    For technical information, type: "get-help Show-InstallationProgress -full".
    For online help, type: "get-help Show-InstallationProgress -online"