#1787 Adds CapMax talker alias continuation FLCO. Resolves issue with Con+ control channel SLCO message detection. (#1796)

#1787 Adds Capacity Max talker alias FLCO.  Fixes standard FLC Talker Alias using ISO7 format.  Updates channel details to list the tier 3 neighbors in the details.
#1787 Updates DMR capacity max event handling to better show events.  Adds support for voice channel update for both Open System and Advantage modes.  May cause issues with Cap+ or Con+ due to changes ... needs more testing.
#1787 DMR capacity max group voice update handling.

Co-authored-by: sheirerd <sheirerd@ainfosec.com>

src/main/java/io/github/dsheirer/identifier/Form.java

@@ -54,6 +54,7 @@ public enum Form
     STATE,
     SYSTEM,
     TALKER_ALIAS,
+    TALKER_ALIAS_2,
     TALKGROUP,
     TELEPHONE_NUMBER,
     TONE,

src/main/java/io/github/dsheirer/identifier/alias/DmrTalkerAlias2Identifier.java

@@ -0,0 +1,54 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.identifier.alias;
+
+import io.github.dsheirer.protocol.Protocol;
+
+/**
+ * DMR Talker alias (alternate/additional) value provided by the network for the current talker (ie FROM).
+ */
+public class DmrTalkerAlias2Identifier extends TalkerAlias2Identifier
+{
+    /**
+     * Constructs an instance.
+     * @param value of the talker alias
+     */
+    public DmrTalkerAlias2Identifier(String value)
+    {
+        super(value);
+    }
+
+    @Override
+    public boolean isValid()
+    {
+        return getValue() != null && !getValue().isEmpty();
+    }
+
+    @Override
+    public Protocol getProtocol()
+    {
+        return Protocol.DMR;
+    }
+
+    public static DmrTalkerAlias2Identifier create(String value)
+    {
+        return new DmrTalkerAlias2Identifier(value);
+    }
+}

src/main/java/io/github/dsheirer/identifier/alias/TalkerAlias2Identifier.java

@@ -0,0 +1,46 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.identifier.alias;
+
+import io.github.dsheirer.identifier.Form;
+import io.github.dsheirer.identifier.IdentifierClass;
+import io.github.dsheirer.identifier.Role;
+import io.github.dsheirer.identifier.string.StringIdentifier;
+
+/**
+ * Talker alias (alternate/second) value provided by the network for the current talker (ie FROM).
+ */
+public abstract class TalkerAlias2Identifier extends StringIdentifier
+{
+    /**
+     * Constructs an instance.
+     * @param value of the string/alias identifier
+     */
+    public TalkerAlias2Identifier(String value)
+    {
+        super(value, IdentifierClass.USER, Form.TALKER_ALIAS_2, Role.FROM);
+    }
+
+    @Override
+    public boolean isValid()
+    {
+        return getValue() != null && !getValue().isEmpty();
+    }
+}