Embedded MCU code in the MRA

[jotego]

Problem

Users have trouble getting the zip file with the custom MCU firmware needed for games missing MCU dumps

Action

Update the mame2mra.toml so assembler code is embedded in the MRA files.

Tasks

• [x] https://github.com/jotego/jtframe/issues/94
• [x] Tough Turf
• [x] Wonder Boy 3
• [x] Publish update