Add -Exclude to Update-TcgPricing function

[jacksonbrumbaugh]

see sub.line

[jacksonbrumbaugh]

perhaps a good way to implement this type of feature would be an [-Exclude (-x)] switch that searches for an external List file of card names to be excluded from price updates ...

or would these be excluded from discounts

might need to be an external CSV file to include card name & why that card is being excluded