rs-client: Cleanup (#1087)

* rs-client: name SpriteBuffer

* rs-client: (re)name spritebuffer methods

* rs-client/deob: Add missed @Export's, make updatemappings fix this next time

* rs-client: run intellij redundant else inspection

* rs-client: invert some script interpreter if's

* deob: checkstyle fixes

* rs-client: SpriteBuffer_loadSprite -> SpriteBuffer_bufferFile

runescape-client/src/main/java/VarpDefinition.java

@@ -101,8 +101,7 @@ public class VarpDefinition extends DualNode {
 			}
 
 			return false;
-		} else {
-			return true;
 		}
+		return true;
 	}
 }