it contains all possible interface versions parsed from the 'interface' field.
 the current 'interface-version' field is now the first value parsed from this list.

  new private fn is less strict, interpreting and extrapolating values, warning on bad values etc.
  new fn does validation and discards data if it's invalid.
  this was done so we don't have to repeat parsing steps elsewhere.
toc.clj, the templated '## # interface' value is now considered and included in the interface-version-list.
github-api.clj, removed duplicated parsing of :interface values in favour of that in toc.clj
github-api.clj, order of extracted gametrack values is now deterministic.

 - '110000' was returning '1.0.000' instead of '11.0.0'
toc.clj, fixed bug where data would fail to valid and be discarded.
 - it was possible for multiple distinct interface-version values to become duplicate game tracks values (like [:retail :retail])
jfx.clj, the 'WoW' (interface version) column now supports multiple values.
 - default column width values increased to accommodate them.

core.clj, fixed a typo in the import/export logic and the test helper that was using :toc/game-track instead of :-toc/game-track
toc.clj, replaced :-toc/game-track with :-toc/game-track-list
addon.clj, a single set of toc data can now belong to many game tracks
 - this means the first instance of 'classic' toc data (for example) will be used even if multiple toc files support classic. crazy.
tukui, curseforge, removed their 'expand-summary' implementations.
jfx.clj, addon data detail pane now accommodates many interface values.
toc.clj, removed a warning when the presence of a game track in the filename doesn't match the game tracks parsed from the data.
- the user can't really do anything about it, I had at least one false-positive and with many game tracks to now check it seems needlessly expensive.

curseforge, tukui, removes test fixtures referenced by removed code.

 these appear to have been introduced for curseforge and only used there.