Konquest

* Added support for Minecraft 1.21.5.
* Added custom loot tables for town monuments and ruins, defined in loot.yml, for entirely custom loot tables per monument template or ruin, and also based on town trade specializations.
  * Added commands for setting custom loot tables for monument templates and ruins.
    * `/k admin monument loot (template) (loot)`
    * `/k admin ruin loot (ruin) (loot)`
  * Added text to info menus for displaying active loot tables in towns and ruins.
  * Added loot table name titles to chest inventory of town monument and ruin loot chests.
* Added integration support for squaremap, enabled in core.yml with option `core.integration.squaremap`.
* Added banner images to web map territory labels.
  * Enable showing banner images in core.yml option `core.integration.map_options.show_banners`.
  * Use any PNG image as kingdom flags and other territory markers in the Konquest/banners/ folder.
* Minor Features
  * Added core.yml option `core.kingdoms.protect_pistons_use` to enable using pistons in land of offline-protected kingdoms.
  * Added core.yml option `core.towns.allow_claim_residents_only` to enable players to claim land for towns only when they are the resident of that town.
  * Updated all map area display label formats and added some territory-specific properties, like "Loot Type" and "Capture Allowed" for ruins and towns/capitals.
* Bug Fixes
  * Made admin bypass mode ignore EssentialsX teleport protections.
  * Fixed map displays for ruins and sanctuaries when they are renamed.
  * Updated Dynmap territory rendering logic to fix display problems.
  * Updated data file saving to prevent erasing all territory data on file when internal errors happen during the saving process.
  * Fixed some projectiles ignoring damage protection checks for friendly players (Crossbow fired exploding firework).
  * Fixed bug which prevented creating kingdoms in worlds that had no other territories.