Add a column with the stock price for buy/sell activities to account_transactions.csv

[migo1271]

Many thanks for this great tool. It works good, but I would like to suggest the following:

Is your feature request related to a problem? Please describe.
I must manually add a column which calculates the stock price from the given Values/Shares/Fees columns for any buy/sell activity in account_transactions.csv.

Describe the solution you'd like
Add a column with the stock price for buy/sell activities to account_transactions.csv.

Describe alternatives you've considered
n/a

Additional context
n/a