[CTOR-46] [Plugin] Add Pack Teldat SNMP

[lucie-dubrunfaut]

Description

Add Teldat SNMP plugin with following modes :

• CPU
• Mémoire
• Traffic
• Hardware
• Cells-Radio

Type of change

• Patch fixing an issue (non-breaking change)
• New functionality (non-breaking change)
• Breaking change (patch or feature) that might cause side effects breaking part of the Software

Checklist

Community contributors & Centreon team

• I have followed the coding style guidelines provided by Centreon
• I have commented my code, especially new classes, functions or any legacy code modified. (docblock)
• I have commented my code, especially hard-to-understand areas of the PR.
• I have rebased my development branch on the base branch (develop).

[lucie-dubrunfaut]

@omercier Avoid OK: Empty output if the filter didn't catch anything (see below). But maybe in link with the overall issue with OK: Empty outputs.

# Return : OK:  | 'modules.cellradio.detected.count'=0;;;0;
    # return if (scalar(keys %{$self->{cells}}) <= 0);