Prepare release v1.3.5.
[arguments] 2 new arg types to define SNMPv3 auth and priv protocols.

* *snmpv3_auth_protocol*: validate that the user selected one of the supported
SNMPv3 Auth protocol: _md5_, _noauth_ and _sha_.
* *snmpv3_priv_protocol*: validate that the user selected one of the supported
SNMPv3 Priv protocol (for encryption): _3des_, _aes128_, _aes192_, _aes256_,
_des_ and _nopriv_.

refs #3445
[plugin] SNMPv3: add support for SNMPv3 in plugin and probe.

Add new argument @-3@ with:

* @--login@
* @--password@
* @--auth-protocol@
* @--priv-protocol@

refs #3445
[Tests] Updates SNMP tests.
Merge branch 'request/3445'

* request/3445:
  [Tests] Updates SNMP tests.
  [plugin] SNMPv3: add support for SNMPv3 in plugin and probe.
  [arguments] 2 new arg types to define SNMPv3 auth and priv protocols.
  Prepare release v1.3.5.