Improve startup checks for invalid settings

src/main/java/me/libraryaddict/disguise/utilities/plugin/PluginInformation.java

@@ -0,0 +1,60 @@
+package me.libraryaddict.disguise.utilities.plugin;
+
+import me.libraryaddict.disguise.utilities.LibsPremium;
+
+/**
+ * Created by libraryaddict on 20/06/2019.
+ */
+public class PluginInformation {
+    private String userID;
+    private String resourceID;
+    private String downloadID;
+    private boolean premium;
+    private String version;
+    private String buildNumber;
+    private String buildDate;
+
+    public PluginInformation(String userID, String resourceID, String downloadID, boolean premium, String version,
+            String buildNumber, String buildDate) {
+        this.userID = userID;
+        this.resourceID = resourceID;
+        this.downloadID = downloadID;
+        this.premium = premium;
+        this.version = version;
+        this.buildNumber = buildNumber;
+        this.buildDate = buildDate;
+    }
+
+    public String getUserID() {
+        return userID;
+    }
+
+    public String getResourceID() {
+        return resourceID;
+    }
+
+    public String getDownloadID() {
+        return downloadID;
+    }
+
+    public boolean isPremium() {
+        return premium;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public String getBuildNumber() {
+        return buildNumber;
+    }
+
+    public String getBuildDate() {
+        return buildDate;
+    }
+
+    public boolean isLegit() {
+        return getUserID().matches("[0-9]+") && LibsPremium.getResourceID().equals("32453") &&
+                getDownloadID().matches("-?[0-9]+");
+    }
+}