Add basic folia support

nms/v1_21R1/src/main/kotlin/xyz/alexcrea/cuanvil/dependency/scheduler/PaperScheduler.kt

@@ -0,0 +1,52 @@
+package xyz.alexcrea.cuanvil.dependency.scheduler
+
+import io.papermc.paper.threadedregions.scheduler.ScheduledTask
+import org.bukkit.Bukkit
+import org.bukkit.entity.Entity
+import org.bukkit.plugin.Plugin
+import java.util.function.Consumer
+
+class PaperScheduler : TaskScheduler {
+    override fun scheduleGlobally(plugin: Plugin, task: Runnable, time: Long): Any? {
+        if(time < 1){
+            return Bukkit.getGlobalRegionScheduler().run(
+                plugin,
+                Consumer { scheduledTask: ScheduledTask? -> task.run() }
+            )
+        }
+        return Bukkit.getGlobalRegionScheduler().runDelayed(
+            plugin,
+            Consumer { scheduledTask: ScheduledTask? -> task.run() },
+            time
+        )
+    }
+
+
+    override fun scheduleOnEntity(plugin: Plugin, entity: Entity, task: Runnable, time: Long): Any? {
+        if(time < 1){
+            return entity.scheduler.run(
+                plugin,
+                Consumer { scheduledTask: ScheduledTask? -> task.run() },
+                Runnable {}
+            )
+        }
+        return entity.scheduler.runDelayed(
+            plugin,
+            Consumer { scheduledTask: ScheduledTask? -> task.run() },
+            Runnable {},
+            time
+        )
+    }
+
+    companion object {
+        fun isPaper(): Boolean {
+            try {
+                Bukkit::class.java.getDeclaredMethod("getGlobalRegionScheduler")
+                return true
+            } catch (e: NoSuchMethodException) {
+                return false
+            }
+        }
+    }
+    
+}