Update copyright for 2023

Author: netniV

.github/ISSUE_TEMPLATE/bug_report.md

@@ -6,6 +6,11 @@ labels: ''
 assignees: ''
 
 ---
+<!--
+ #
+ # Copyright (C) 2004-2023 The Cacti Group
+ #
+-->
 
 **Describe the bug**
 A clear and concise description of what the bug is.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -6,6 +6,11 @@ labels: ''
 assignees: ''
 
 ---
+<!--
+ #
+ # Copyright (C) 2004-2023 The Cacti Group
+ #
+-->
 
 **Is your feature request related to a problem? Please describe.**
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

.gitignore

@@ -1,3 +1,24 @@
+# +-------------------------------------------------------------------------+
+# | Copyright (C) 2004-2023 The Cacti Group                                 |
+# |                                                                         |
+# | 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 2          |
+# | 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.                            |
+# +-------------------------------------------------------------------------+
+# | Cacti: The Complete RRDtool-based Graphing Solution                     |
+# +-------------------------------------------------------------------------+
+# | This code is designed, written, and maintained by the Cacti Group. See  |
+# | about.php and/or the AUTHORS file for specific developer information.   |
+# +-------------------------------------------------------------------------+
+# | http://www.cacti.net/                                                   |
+# +-------------------------------------------------------------------------+
+
 .git*
 
 locales/po/*.mo