Expand sort by filename to ignore common English articles, and persist setting

[PhilaPhan80]

This enhancement adds sorting of file names ignoring common leading English articles (a, an, the) in both ascending and descending order, similar to other media-based systems. It also applies the change to all systems across the board, and it persists the change so it can be restored upon restart/reboot.

For example:

[FILENAME, ASCENDING]
A Boy and His Blob
Adventures of Lolo
Marble Madness
The Legend of Zelda
Yoshi's Cookie

[FILENAME (IGNORE ARTICLES), ASCENDING]
Adventures of Lolo
A Boy and His Blob
The Legend of Zelda
Marble Madness
Yoshi's Cookie

Changes:

• Adds SortType enum to FileSorts namespace so values can be uniquely referenced by ID
• Adds sort by filename with common leading articles ignored (hard-coded with room for optimization)
• Applies SortType selection across all systems on value change
• Saves and persists SortType selection for future sessions (es_settings.cfg)
• Applies SortType selection across all systems on ES startup

[dankcushions]

Regarding older change #240, it looks like this sort of obsoletes the <sortname> functionality? eg, if you had

<name>The Legend Of Zelda</name>
<sortname>Legend Of Zelda, The</sortname>

it would behave exactly the same as if you had

<name>The Legend Of Zelda</name>
<sortname></sortname>

as it would ignore the article by default? so sortname would be kind of redundant apart from if it was something NOT handled automatically, eg:

<name>The Legend Of Zelda</name>
<sortname>Zelda 1</sortname>

i still think it's a good idea as it means this basic stuff is automatic and doesn't require gamelist/scraper intervention, although i suppose it would leave no solution for the maniacs who DO want to sort "The Legend of Zelda" under T :)

EDIT: i see the options now - by default it uses the old sorting, so it would appear fine if it doesn't affect the older sortname functionality 👍

[PhilaPhan80]

Thanks for considering this. Your edit is correct -- the system continues to work the way it does today by default. This is a setting users would need to apply in order to override the current behavior.

You make a good point about #240, though. Indeed, my intention was to make this automatic and without need for manual intervention. However, I have no desire to obsolete other features. Rather, I'd prefer them to work in harmony with each other.

Reflecting upon this further, I believe the best solution might be to add a system-wide option within the START menu, rather than enforcing a system-wide selection within the SELECT menu. When enabled, this would allow common articles to be ignored for both "sortname" and "name", and for ALL sort types (name, rating, developer, genre, etc.). When disabled, sorting would continue to work the way it does today. This also eliminates the need for the additional sort entries within the sort type list.

Lastly, on a side note, now that I know how settings are stored and loaded, I could probably work the articles into the settings file as a comma-delimited text string.

With that said, I'm going to close this request. I'll take a closer look and submit a new PR shortly.

[joolswills]

Thanks for your work on this.

[PhilaPhan80]

Thank YOU all! Without your work, I wouldn't be able to enjoy this wonderful project.