Removed some code duplication and reordered some other code.

Added a new `copy`/`clipboard` flag, which makes GS export the table to clipboard instead of to a file.

INPUT NEEDED:
I also added two new flags, `noaugments` and `onlyaugmented` which respectively do:
- `noaugments`/`noaugs` exports the set without recording the augments on each item (useful if you mostly have single-path items so you don't get a spam of `Path: A` and such; or if you already have augmented items saved)
- `onlyaugmented`/`onlyaugs` *only* exports items that have augments and ignores entirely non-augmented items (useful if you need to make variables for your augmented gear, or in combination with the `wearable` flag to export all augmented items that your current job can equip, to make a new gearswap file, etc)

The issue I have is that I would like gearswap to print out a notice when provided one of these flags, but I can't come up with good ones myself 😄 input appreciated

Removed stray `log()`
Tweaked argument parsing.
Finalized displayed message.

Fixed markdown
Added the newer options for the `export` command.

Version bump