fix age restricted videos

Swapped out lavaplayer branches.
Hooked PAPISID and PSID keys to the config.

In order to use this, add the following variables to the config:
papisid =
psid =

and set their value by looking at your Youtube cookies.
In Firefox, open up the dev tools (inspect element),
go to the Network tab,
filter for youtubei
refresh the page,
select the first POST message,
select the Cookies tab,
and grab __Secure-3PAPISID and __Secure-3PSID

See the official guide for that:
Walkyst/lavaplayer-fork#18

pom.xml

@@ -48,11 +48,18 @@
             <artifactId>lavaplayer</artifactId>
             <version>1.3.78</version>
         </dependency -->
+        <!--dependency>
+            <groupId>com.github.jagrosh</groupId>
+            <artifactId>lavaplayer</artifactId>
+            <version>jmusicbot-SNAPSHOT</version>
+        </dependency-->
+        <!-- Use this fork to get age restricted videos -->
         <dependency>
-	    <groupId>com.github.jagrosh</groupId>
-	    <artifactId>lavaplayer</artifactId>
-	    <version>jmusicbot-SNAPSHOT</version>
-	</dependency>
+            <groupId>com.github.walkyst</groupId>
+            <artifactId>lavaplayer-fork</artifactId>
+            <version>1.3.97</version>
+        </dependency>
+
         <!-- this is needed, but isn't actually hosted anywhere anymore... uh -->
         <!--dependency>
             <groupId>com.sedmelluq</groupId>

src/main/java/com/jagrosh/jmusicbot/BotConfig.java

@@ -39,7 +39,7 @@ public class BotConfig
     private final static String END_TOKEN = "/// END OF JMUSICBOT CONFIG ///";
 
     private Path path = null;
-    private String token, prefix, altprefix, helpWord, playlistsFolder,
+    private String token, papisid, psid, prefix, altprefix, helpWord, playlistsFolder,
             successEmoji, warningEmoji, errorEmoji, loadingEmoji, searchingEmoji;
     private boolean stayInChannel, songInGame, npImages, updatealerts, useEval, dbots;
     private long owner, maxSeconds, aloneTimeUntilStop;
@@ -70,6 +70,8 @@ public void load()
 
             // set values
             token = config.getString("token");
+            papisid = config.getString("papisid");
+            psid = config.getString("psid");
             prefix = config.getString("prefix");
             altprefix = config.getString("altprefix");
             helpWord = config.getString("help");
@@ -113,6 +115,15 @@ public void load()
                     write = true;
                 }
             }
+
+            if(papisid==null || papisid.isEmpty())
+            {
+                warn("No PAPISID provided! Age-restricted videos will not work. Continuing.");
+            }
+            if(psid==null || psid.isEmpty())
+            {
+                warn("No PSID provided! Age-restricted videos will not work. Continuing.");
+            }
 
             // validate bot owner
             if(owner<=0)
@@ -205,6 +216,12 @@ public static void writeDefaultConfig()
             prompt.alert(Prompt.Level.ERROR, "JMusicBot Config", "An error occurred writing the default config file: " + ex.getMessage());
         }
     }
+
+    private void warn(String msg)
+    {
+        prompt.alert(Prompt.Level.WARNING, CONTEXT, msg + "\nConfig Location: " + path.toAbsolutePath().toString());
+        return;
+    }
 
     public boolean isValid()
     {
@@ -349,4 +366,14 @@ public Config getTransforms()
     {
         return transforms;
     }
+
+    public String getPapisid()
+    {
+        return papisid;
+    }
+
+    public String getPsid()
+    {
+        return psid;
+    }
 }

src/main/java/com/jagrosh/jmusicbot/JMusicBot.java

@@ -80,7 +80,7 @@ private static void startBot()
         if(!config.isValid())
             return;
         LOG.info("Loaded config from " + config.getConfigLocation());
-        
+
         // set up the listener
         EventWaiter waiter = new EventWaiter();
         SettingsManager settings = new SettingsManager();

src/main/java/com/jagrosh/jmusicbot/playlist/PlaylistLoader.java

@@ -22,6 +22,8 @@
 import com.sedmelluq.discord.lavaplayer.tools.FriendlyException;
 import com.sedmelluq.discord.lavaplayer.track.AudioPlaylist;
 import com.sedmelluq.discord.lavaplayer.track.AudioTrack;
+import com.sedmelluq.discord.lavaplayer.source.youtube.YoutubeHttpContextFilter;
+import com.sedmelluq.discord.lavaplayer.source.youtube.YoutubeHttpContextFilter;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
@@ -40,6 +42,12 @@ public class PlaylistLoader
     public PlaylistLoader(BotConfig config)
     {
         this.config = config;
+
+        // set up age restrction workaround from config
+        println("papisid: " + config.getPapisid());
+        YoutubeHttpContextFilter.setPAPISID(config.getPapisid());
+        println("psid" + config.getPsid());
+        YoutubeHttpContextFilter.setPSID(config.getPsid());
     }
 
     public List<String> getPlaylistNames()