Makes flask much much much easier to use with a powershell script

fd.ps1

#!/usr/bin/pwsh
param (
    [string]$FlaskApp = "app.py", 
    [string]$FlaskEnvironment = "development",    
    [string]$IPHost = "127.0.0.1",
    [string]$Port = 5000
)

#set env var "FLASK_APP" to $args[0]
#set env var "FLASK_ENV" to $args[1]
$env:FLASK_APP=$FlaskApp
$env:FLASK_ENV=$FlaskEnvironment

py -m flask run --host $IPHOST --port $Port