Refactor logging internals

[matcool]

Fixes #369

• removes LogComponents, now logs just get formatted into a string and saved like that
• Now to define formatting of own type, use fmtlib's api (either format_as or fmt::formatter, see their docs!)
• Breaks ABI (wowie!)
• Usage wise, your code stays the exact same. unless you had defined your own parser overload

TODO

• Refactor Logger class?
• Make Log pimpl? was made hidden instead

[matcool]

The log file names and msgs aren't using the local time (its always displaying utc time), i couldnt figure it out in time

[matcool]

Fixed now, along with formatting Mod*, so everything should be done now :-)