trading212 support (partial)

[bobcho]

This adds support for parsing Trading212 statements in csv format in addition to Revolut's pdf statements. Just put all the files in the input folder.

Only partial support for time being - it lacks some activity types because I don't have a full statement at the moment (trading212 takes time to generate the statements and also I don't think I have received any dividends at all so far on their platform).

Includes support for market and limit buy/sell orders only (lacks anything else). Also, output/statements.csv won't have settlement date for trading212 activities as its not included in the t212 export. As settle date is not used anywhere I guess this is fine.

This should not break any current functionality or at least that was my intention.

[doino-gretchenliev]

Thank you for your PR. I'll review it soon.

[doino-gretchenliev]

I've reviewed the PR and I want to include your parser as supported. In order to develop infrastructure for other parsers, I've isolated the Revolut parser code here. Please, rework your code to extend StatementFilesParser class and place it under libs/parsers/trading212.py. You can use the Revolut parser as an example. That way a user could call the app with -s trading212 and use your parser.

[bobcho]

Thanks, added pr #10 with the rework.

I think there is the need to allow multiple -s arguments, allowing simultaneous parsing from multiple sources.

[doino-gretchenliev]

Agreed, I'll implement multiple sources.

[bobcho]

Agreed, I'll implement multiple sources.

Looking forward to have this implemented :)