Added log-full-extension-errors

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/extensions/EcoExtensionLoader.kt

@@ -1,6 +1,7 @@
 package com.willfp.eco.internal.extensions
 
 import com.google.common.collect.ImmutableSet
+import com.willfp.eco.core.Eco
 import com.willfp.eco.core.EcoPlugin
 import com.willfp.eco.core.config.TransientConfig
 import com.willfp.eco.core.extensions.Extension
@@ -32,6 +33,9 @@ class EcoExtensionLoader(
 
             runCatching { loadExtension(extensionJar) }.onFailure {
                 this.plugin.logger.warning(extensionJar.name + " caused an error!")
+                if (Eco.getHandler().ecoPlugin.configYml.getBool("log-full-extension-errors")) {
+                    it.printStackTrace()
+                }
             }
         }
     }

eco-core/core-plugin/src/main/resources/config.yml

@@ -48,6 +48,10 @@ display-frame-ttl: 17
 # at a performance penalty.
 use-safer-namespacedkey-creation: false
 
+# If the stack traces of extensions that failed to load should be logged. Disabled by
+# default to prevent users from reporting bugs. Enable if you're a developer.
+log-full-extension-errors: false
+
 # Window items packets have the option to be run asynchronously. This may cause
 # some bugs and is considered experimental, however it has been tested without
 # any apparent issues. Enable this if performance is absolutely crucial or if you