Display additional information about an SGF file on the "Archive" tab

[herzbube]

Currently when a game is tapped on the "Archive" tab the details that are displayed consist merely of

• The game name (which is the file name minus the ".sgf" extension)
• The time the game was last saved (last modification date of the file)

Now that SgfcKit has been integrated the app has access to many more pieces of information that are stored inside the SGF file. The detail view should be enhanced to display at least some of this information.

[herzbube]

Preliminary ideas:

• Tapping the game loads the SGF file
  • If loading the SGF file fails the detail view displays the reason for the failure. Take the new processing options in #337 into account.
  • If loading the SGF file succeeds the detail view displays the information stored in the file.
  • In all cases the detail view displays a color-coded load result summary (e.g. "3 warnings, 4 errors")
  • Green = No messages
  • Yellow = Some non-critical warnings
  • Orange = Some non-critical errors
  • Red = Critical warnings and/or errors, also fatal errors (these always cause loading to fail)
  • Tapping the load result summary calls up a new screen that lists all messages that are part of the load result
  • If the encoding option "-E1 and -E2" was selected (see #337) the messages for both load attempts need to be displayed. This could be solved via tabs or pages.
  • Messages are listed with the same color-code as the load result summary
  • Display only the message text. Tapping the message text calls up a new screen with the full message details.
• The detail view
  • Shows a section for each game in the SGF file. This is basically a flat list of all game info nodes below all root nodes in the SGF file.
  • Games that are not Go are not displayed.
  • Each section contains the same 6 items: Game name, game dates, black player name, white player name, game result, board size
  • Each section additionally has a "load" button and a "details" button
  • Tapping the "load" button loads the game whose details are shown in that section. The "load" button in the screen toolbar loads the first game. If there is only one game there is no "load" button in the section that displays that game's details. If there are 2 or more games then the "load" button in the screen toolbar has the same function as the "load" button in the section that displays the first game's details.
  • Tapping the "details" button calls up a new screen that shows the full details for that game. Cf. SGFCGoGameInfo and SGFCGameInfo.

[herzbube]

Test with files that contain Chinese, Japanese or Korean characters.