Update to Minecraft 1.15

By: md_5 <git@md-5.net>

paper-server/nms-patches/EntityBat.patch

@@ -33,7 +33,7 @@
          } else {
              if (this.d != null && (!this.world.isEmpty(this.d) || this.d.getY() < 1)) {
 @@ -134,7 +143,11 @@
-             this.bd = 0.5F;
+             this.bb = 0.5F;
              this.yaw += f1;
              if (this.random.nextInt(100) == 0 && this.world.getType(blockposition1).isOccluding(this.world, blockposition1)) {
 -                this.setAsleep(true);
@@ -45,7 +45,7 @@
              }
          }
  
-@@ -162,7 +175,11 @@
+@@ -164,7 +177,11 @@
              return false;
          } else {
              if (!this.world.isClientSide && this.isAsleep()) {