Resource Address field (To)" for "Non-hierarchical, Absolute" addressing format

For Non-hierarchical absolute format, should be of //SP-ID/CSE-ID/RESOURCE-ID. As per the current implementation in TTCN, its add PX_CSE_RESOURCE_ID to additionally to the address field.

Due to this, mainly the test related to non-hierarchical absolute format fails as it expects the additional field. We need to do the changes in f_getResourceAddress() function in TTCN code to correct the address format (//SP-ID/CSE-ID/RESOURCE-ID).