Add support for Comx-35

[spotlessmind1975]

The COMX-35 was a home computer that was one of the very few systems to use the RCA 1802 microprocessor, the same microprocessor that is also used in some space probes. The COMX-35 had a keyboard with an integrated joystick in place of cursor keys. It was relatively inexpensive and came with a large collection of software. COMX-35 was manufactured in Hong Kong by COMX World Operations Ltd and was released in the Netherlands, the United Kingdom, Sweden, New Zealand, Australia, Finland, Norway, Italy, Singapore, Turkey and the People's Republic of China.

EMULATOR: https://www.emma02.hobby-site.com/
INFORMATIONS: https://www.comxclub.hobby-site.com/COMX35TechnicalManual.pdf