Can-isotp

Bugfix
- Fix 129. Sending single frames (small payload that fits in a single message) was broken when `blocking_send` was set to `True`

**Bugfixes**
- Does not report error in listen mode when rx address is the address of a transmitter

**Improvements**
- Added py.typed marker to repo

**Bugfix**
- Fix performance issue with ``stop_receiving`` that is called before each transmission by ``udsoncan``

**Improvement**
- Significantly improved timing under windows. (113) credits : pgreenaland

**Bugfix**
- Bugfix for exception thrown when calling stop_sending (required by udsoncan connection)

**Bugfix**
- Fixed 110. Compatibility with python3.7 to python3.9 is restored