fix: Update Tiesse networking device support

Author: g-bougard

lib/GLPI/Agent/SNMP/MibSupport/Tiesse.pm

@@ -16,13 +16,22 @@ use constant    tiesse  => ".1.3.6.1.4.1.4799" ;
 
 use constant    privatePhysicalDescr  => tiesse . ".3.2.6023.0";
 
+use constant    privateFirmware       => tiesse . ".200.1.0";
+use constant    privateSerialNumber   => tiesse . ".200.2.0";
+
 our $mibSupport = [
     {
         name        => "tiesse",
         sysobjectid => getRegexpOidMatch(tiesse)
     }
 ];
 
+sub getFirmware {
+    my ($self) = @_;
+
+    return getCanonicalString($self->get(privateFirmware));
+}
+
 sub getModel {
     my ($self) = @_;
 
@@ -38,6 +47,12 @@ sub getManufacturer {
     return "Tiesse";
 }
 
+sub getSerial {
+    my ($self) = @_;
+
+    return getCanonicalString($self->get(privateSerialNumber));
+}
+
 sub getType {
     return 'NETWORKING';
 }