* 12394 Add CPU and Mem for Teldat Devices
* add cpu and mem to teldat +mib files.
* minor adjustment.
* add classes to memory: system, shared, cache
* +snmpsim test files
* memory minor fix: class name 'cache' > 'cached'
* minor fix removing: telProdNpMonSistemMemTotal
* add json tests.
* small fix: get S/N from description
* Update teldat.json
Co-authored-by: Tony Murray <murraytony@gmail.com>
