Fix InsertCacheObject parameters validation

:Release Notes:
Added validation of invalid types for "cost", "size", "lifetime" and
"subscribe" parameters of InsertCacheObject call.

:Detailed Notes:

:Testing Performed:

:QA Notes:

:Issues Addressed:
[ANG-370] Filecache: invalid params issue regarding of InsertCacheObject

Open-webOS-DCO-1.0-Signed-off-by: Mykola Kryvonos <mykola.kryvonos@lge.com>

Change-Id: If46adb6fd8c8f1c488deb4a64887fb97b1705a6a
Reviewed-on: https://g2g.palm.com/4697
Reviewed-by: DCO Verification
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Tested-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Reviewed-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>