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/Varps.java

@@ -190,8 +190,7 @@ public class Varps {
 			} catch (Exception var14) {
 				return -1;
 			}
-		} else {
-			return -2;
 		}
+		return -2;
 	}
 }