stoikov: Adopt new formatting conventions

Signed-off-by: Aleksi Pitkäjärvi <aleksi.pitkajarvi@aalto.fi>
stoikov: Add transaction costs

Signed-off-by: Aleksi Pitkäjärvi <aleksi.pitkajarvi@aalto.fi>
stoikov: Stop opening positions when out of cash

Signed-off-by: Aleksi Pitkäjärvi <aleksi.pitkajarvi@aalto.fi>
stoikov: Integrate plotting functionality

Signed-off-by: Aleksi Pitkäjärvi <aleksi.pitkajarvi@aalto.fi>