rename twitchaccount file to twitchuser to match class name

twitch/twitchuser.cpp

@@ -0,0 +1,28 @@
+#include "twitchuser.h"
+
+namespace chatterino {
+namespace twitch {
+TwitchUser::TwitchUser(const QString &username, const QString &oauthToken,
+                       const QString &oauthClient)
+    : IrcUser2(username, username, username, "oauth:" + oauthToken)
+    , _oauthClient(oauthClient)
+    , _oauthToken(oauthToken)
+{
+}
+
+const QString &TwitchUser::getOAuthClient() const
+{
+    return _oauthClient;
+}
+
+const QString &TwitchUser::getOAuthToken() const
+{
+    return _oauthToken;
+}
+
+bool TwitchUser::isAnon() const
+{
+    return IrcUser2::getNickName().startsWith("justinfan");
+}
+}
+}