[Feature Request] get_all_closed_positions()

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Is your feature request related to a problem? Please describe.

Right now, it is very difficult to get accurate P/L for each symbol since day one or long period of time.

### Describe the solution you'd like.

It would be nice to have the option to get the historical P/L of each symbol

**For example:
P/L since 2019 until today:**

AAPL = $900 USD
AMC = -$100 USD
Etc...

Maybe a new method `get_all_closed_positions()` ?

### Describe an alternate solution.

Another method or function that could get the expected results.

### Anything else? (Additional Context)

Simple is better. Occam's razor