Get product transactions endpoint

[TobiasDeBruijn]

This PR adds an endpoint to fetch ProductTransactions. queryable with a unix epoch timestamp in seconds.

If 1666811215 is given as the date parameter, all transactions on the date 2022-10-26 will be returned:

[
    {
        "name": "Racer 5 India Pale Ale, Bear Republic Bre",
        "id": 25,
        "amount": 6
    },
    {
        "name": "Hummus",
        "id": 23,
        "amount": 1
    }
]

[SamStaijen]

What is the status on this branch? As it is now >2 years old. is it still active, can it be closed, or should it be merged?

[TobiasDeBruijn]

No clue anymore tbh