[MERGED PR] Merges mechanics with engineer

[Munien]

Personally, I'd prefer to diversify both Mechanics and Engineers as their own unique jobs, adding new goals and aims to Mechanics while giving Engineers new tools, but I'd also like to hear what other people are saying.

While I do think this is the ideal solution, the reasoning behind this PR is solid with the current state of both of these jobs. The overlap is really strange and often (in my experience) serves to confuse people, especially new players as to what, other than starting the engine or scanning every piece of equipment possible, these roles are actually supposed to do. Frequently I see people of both jobs dealing with breaches and repairs with no meaningful distinction between who is a mech or engi or if any, that mechanics are generally sidelined until a specific piece of equipment needs rebuilding, which at least on the RP servers doesn't really make for fun gameplay since things tend to explode/be stolen less. I don't see any problems with this until such a thing as Glamurio said is achieved.