CTOR-258-cifs,sftp,ftp plugin now check recursively folders

[Evan-Adam]

allow files-count mode to use filter-file and max-depth together. Before this patch when filter-file was used the max-depth was always 1.

REF:CTOR-258

Description

Type of change

• [X] 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

How this pull request can be tested ?

See jira.

Checklist

Community contributors & Centreon team

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