fixes:
- fixed double output after consumption https://github.com/PluginBugs/Issues-ItemsAdder/issues/1937
- optimized fix-glitched-blocks performance on huge servers https://github.com/PluginBugs/Issues-ItemsAdder/issues/1941
- fixed items in hand continue to be combined even when the maximum quantity is reached https://github.com/PluginBugs/Issues-ItemsAdder/issues/1930
- fixed SkinsRestorer (and potentially other plugins) compatibility https://github.com/PluginBugs/Issues-ItemsAdder/issues/1910
- fixed gun_shot event throwing exception if base item material is not a vanilla damageable https://github.com/PluginBugs/Issues-ItemsAdder/issues/1943
- fixed gun projectile property not reporting any error if failed to load
- removed useless search-also-in-these-biomes in config.yml
- cleaned up useless code