Add sonicwall switch products SWS12 and SWS14.

Kindly add sonicwall switches as currently discovered as general.

kf@BRIOBSERVIUM:~$ snmpwalk -v2c -c xx -Cc --hexOutputLength=0 -Ih -ObentxU 192.168.50.12 .1.3.6.1.4.1 >> myagent.snmpwalk
Error in packet.
Reason: noAccess

kf@BRIOBSERVIUM:~$ snmpwalk -v2c -c xx -Cc --hexOutputLength=0 -Ih -ObentxU 192.168.50.12 .1.3.6.1.4.1.8741 >> myagent.8741.snmpwalk
Error in packet.
Reason: (genError) A general failure occured
Failed object: .1.3.6.1.4.1.8741.8.3.1.1.12.1.11.61

kf@BRIOBSERVIUM:~$ snmpwalk -v2c -c xx 192.168.50.12 .1.3.6.1.2.1
iso.3.6.1.2.1.1.1.0 = STRING: "SonicWALL SWS14-48FPOE"
iso.3.6.1.2.1.1.2.0 = OID: iso.3.6.1.4.1.8741.8
iso.3.6.1.2.1.1.3.0 = Timeticks: (455927512) 52 days, 18:27:55.12
iso.3.6.1.2.1.1.4.0 = STRING: "sonicwall cloud management"
iso.3.6.1.2.1.1.5.0 = STRING: "B6-Core02"
iso.3.6.1.2.1.1.6.0 = STRING: "Default Location"
iso.3.6.1.2.1.1.7.0 = INTEGER: 72
iso.3.6.1.2.1.1.8.0 = Timeticks: (455927314) 52 days, 18:27:53.14