* Update showconfig.inc.php
Fix display for pfsense config files.
* Update showconfig.inc.php
Change from else if to elseif
* Update showconfig.inc.php
Decode special chars before syntax highlighting.
* Update pfsense.yaml
* Add config_highlighting device property
Add config_highlighting to device definition
Update showconfig.inc.php to use config_highlighting to set language.
* Update showconfig.inc.php
Fix incorrect code. Chose correct variable where config_highlighting is set.
* Update os_schema.json
Add property config_highlighting to schema
- used for language highlighting when displaying the config file
* Update showconfig.inc.php
* add mibs,first commit
* adds support for Nokia ISAM Plattform
* remove some comments
* change os polling to multi oid
* Restore file headers
* Fix discovery by sysObjectID
* first deactivate checks against IHUB (timos), It not necessary so long we can not provide more thatn one snmp community per device
* move snmp state and temperature from pre-cache
* Update os_schema.json
* Added snmp_max_oid config at Os level.
* Added check for snmpv1 on multi_oid requests.
* Check device_oid_limit on multi get
* Use array_chunk
* Update snmp.inc.php
* remove dump, unused variable and extra plodes
* per device settings should take priority over OS
* Update Settings.md
* don't discard the data :P
Changed some values to be explicitly boolean
DO NOT DELETE THIS TEXT
#### Please note
> Please read this information carefully. You can run `./scripts/pre-commit.php` to check your code before submitting.
- [x] Have you followed our [code guidelines?](http://docs.librenms.org/Developing/Code-Guidelines/)
#### Testers
If you would like to test this pull request then please run: `./scripts/github-apply <pr_id>`, i.e `./scripts/github-apply 5926`
