better resource organization

new sorting options for the resource allocation screen:

• sort settlements by name, yield, or total resource slots
• easily change sort order and direction
• optionally separate cities and towns

each settlement also shows local conditions that affect resource bonuses, like Distant Lands in the Exploration age, or Port, Rail Station, and Factory buildings in the Modern age.

the mod is language-independent during play. only the menu screens (Mods and Options) contain localized text.

supported languages:

• French (translated by trixie)
• German (translated by Chr1Z93)
• Italian (translated by leonardfactory)
• Korean (translated by Hotsolidinfill)
• Russian (translated by Webrok)
• Simplified Chinese (translated by v480615)
• Traditional Chinese (translated by v480615)

thank you all for your help!