fix major bugs in Find and Search in Project functionality.

fix case sensitive and regexp search, remove duplicating code

Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>

[TOPOLOGY]
NetName=None
Nodes=0x01
Node2Present=0x01
Node2Name=SlaveNode
Node2DCFName=Slave_0_0.eds
EDSBaseName=eds