Align Filtering with FortiManager (PowerFMG)

[alagoutte]

FortiManager can use like or contain for filtering
it is more limited with FortiGate (equal or contains actually).

Need to replace contain by like for align with PowerFMG

[alagoutte]

it should be nice also to have support of multiple filtering (for example Get-FGTLogTraffic to have multiple policyid) @CedricMoreau