add license header to installer.sh

installer/service/installer.sh

@@ -1,4 +1,20 @@
 #!/bin/bash
+# Go-OpenBMCLAPI service installer
+# Copyright (C) 2024 the Go-OpenBMCLAPI Authors
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 
 # if [ $(id -u) -ne 0 ]; then
 # 	echo -e "\e[31mERROR: Not root user\e[0m"