When exporting all accounts to QIF from Quicken 2013 with transaction…

[tgoetze]

…s only, additional fields and types are included.

In particular, Option:AutoSwitch is described here: https://community.quicken.com/discussion/7147335/explain-the-qif-format-for-autoswitch

A new test is added to ensure correct handling.

Additionally:

• Quicken 2013 can include trailing spaces in account types, so that is now allowed in parsing.
• Remove commas in input amounts during parsing into Decimal objects.
• Support different input formats of dates using the static variable: QifParser.MONTH_IS_BEFORE_DAY_IN_DATES
• Properly close files in unit tests to avoid warnings in python3.8+