Port Injector to main layout

Adds deobfuscator
Adds injected-client
Adds injector-plugin
Adds runescape-client

Replaces RL's apis

Small bug with sprites atm, will be resolved soon. tired af.

Builds, probably

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

@@ -0,0 +1,7 @@
+import net.runelite.mapping.Implements;
+import net.runelite.mapping.ObfuscatedName;
+
+@ObfuscatedName("gb")
+@Implements("ClientPacketMarker")
+public interface ClientPacketMarker {
+}