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/PcmPlayer.java

@@ -111,6 +111,7 @@ public class PcmPlayer {
 		signature = "(I)V",
 		garbageValue = "-1518489339"
 	)
+	@Export("init")
 	protected void init() throws Exception {
 	}
 
@@ -119,6 +120,7 @@ public class PcmPlayer {
 		signature = "(IB)V",
 		garbageValue = "2"
 	)
+	@Export("open")
 	protected void open(int var1) throws Exception {
 	}
 
@@ -133,6 +135,7 @@ public class PcmPlayer {
 	}
 
 	@ObfuscatedName("p")
+	@Export("write")
 	protected void write() throws Exception {
 	}