Adds a simple BSP API to get/set integer flags for each resource type.
All bits are platform-defined, so this can be used to store any
arbitrary platform flag.

Initial use case is for setting task flags on vxWorks platforms which
require a certain task flag to be set.

Adds the capability for the bsd sockets implementation to use
a function provided by the OS layer to set the socket flags.

This allows VxWorks to have an alternative implementation that
uses ioctl rather than fcntl to set the flags.

Fix #1148, Enable symbol api test and MIR dump too large

Fix #1151, MIR symbol too long or table to long for osloader test

Fix #1154, add bsp-specific configuration flag registry

Fix #1153, add os-specifc socket flag function