Implement Freetrade parser

[podtserkovskiy]

Supported events

• Sell
• Buy
• Top up
• Withdrawal
• Interest on cash
• Dividends
• Free share

Freetrade doesn't provide stock splits events, I added a hacky support for few stocks borrowing code from another parser

[podtserkovskiy]

The datetime.fromisoformat do not support dates like 2021-12-13T16:16:49.475Z in Python version before 3.11
Freetrade using this version of ISO 8601 format for transaction dates.
CI uses Python 3.9 at the moment its EOL is planned in 2025

@KapJI Would you mind if I make a PR with Python version update?
UPD: #565

[vmartinv]

Looks great! Can you also update the README.md with instructions for it?

[vmartinv]

Instead of using 3.12 you can do something like this maybe?

from datetime import datetime

iso_date = "2021-12-13T16:16:49.475Z"
# Replace 'Z' with '+00:00' to make it compatible
iso_date = iso_date.replace("Z", "+00:00")

# Parse the string with the adjusted format
parsed_date = datetime.strptime(iso_date, "%Y-%m-%dT%H:%M:%S.%f%z")

print(parsed_date)  # Output: 2021-12-13 16:16:49.475000+00:00

[podtserkovskiy]

Thanks for the advice, I added a date parsing function based on your example and augmented README.md