Add PAL20L8 specs

.vscode/settings.json

@@ -1,3 +1,9 @@
 {
-    "java.configuration.updateBuildConfiguration": "interactive"
+    "java.configuration.updateBuildConfiguration": "automatic",
+    "files.exclude": {
+        "**/.classpath": true,
+        "**/.project": true,
+        "**/.settings": true,
+        "**/.factorypath": true
+    }
 }

src/main/java/info/hkzlab/dupal/analyzer/devices/PAL20L8Specs.java

@@ -31,7 +31,7 @@ public class PAL20L8Specs implements PALSpecs {
 
     @Override
     public int getMask_IN() {
-        return 0x3FF;
+        return 0x3C03FF;
     }
 
     @Override