Sample control for UniversalDashboard.
    Sample control function for UniversalDashboard. This function must have an ID and return a hash table.
    An id for the component default value will be generated by new-guid.
    PS C:\> <example usage>
    Explanation of what the example does
    Inputs (if any)
    Output (if any)
    General notes

function New-GitHubHeatMap {
        [string]$Id = (New-Guid).ToString(),
        [string]$StartDate = "2020-01-01",
        [string]$EndDate = "2020-12-01",
        [bool]$MonthLabels = $true,
        [bool]$WeekLabels = $true,
        [bool]$Horizontal = $true,
        [int]$GutterSize = 2

    End {

            # The AssetID of the main JS File
            assetId           = $AssetId
            # Tell UD this is a plugin
            isPlugin          = $true
            # This ID must be the same as the one used in the JavaScript to register the control with UD
            type              = "GitHub-HeatMap"
            # An ID is mandatory
            id                = $Id

            # This is where you can put any other properties. They are passed to the React control's props
            # The keys are case-sensitive in JS.
            startDate         = $StartDate
            endDate           = $EndDate
            values            = [array]$Values.invoke()
            showMonthLabels   = $MonthLabels
            showWeekdayLabels = $WeekLabels
            horizontal        = $Horizontal
            gutterSize        = $GutterSize