Build the whole script, including system and main, at once

[Akasaka Ryuunosuke]

This will allow to implement the look badge command by having the same flag offset values over the whole system.

What is needed to accomplish this is:

• Save the built script into the same folder it's TXT was originally from, or adjust the build process and specify an arbitrary output folder
• Replace then --no-eof argument with some kind of a marker, e.g. don't add the EOF mark when the first line of the file is #SYSTEM
• Write the actual look badge command code in the systemwide script file