posix: native: support native runner
posix: native: support native runner

This adds support of 'make run' to the native port allowing us to run
applications natively on the host instead of qemu.

Signed-off-by: Anas Nashif <0d9952ec84ac43c159f6b7e7ed99a9080c00dd6e@intel.com>

GiulianoFranchetto/zephyr,ldts/zephyr,kraj/zephyr,zephyriot/zephyr,galak/zephyr,mbolivar/zephyr,aceofall/zephyr-iotos,finikorg/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,kraj/zephyr,finikorg/zephyr,Vudentz/zephyr,ldts/zephyr,Vudentz/zephyr,kraj/zephyr,mbolivar/zephyr,nashif/zephyr,galak/zephyr,nashif/zephyr,ldts/zephyr,explora26/zephyr,aceofall/zephyr-iotos,explora26/zephyr,punitvara/zephyr,aceofall/zephyr-iotos,galak/zephyr,punitvara/zephyr,nashif/zephyr,aceofall/zephyr-iotos,ldts/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,ldts/zephyr,punitvara/zephyr,explora26/zephyr,punitvara/zephyr,zephyriot/zephyr,zephyriot/zephyr,explora26/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,kraj/zephyr,galak/zephyr,zephyriot/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,GiulianoFranchetto/zephyr,galak/zephyr,nashif/zephyr,nashif/zephyr,GiulianoFranchetto/zephyr,zephyriot/zephyr,mbolivar/zephyr,finikorg/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,zephyrproject-rtos/zephyr,Vudentz/zephyr,mbolivar/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,kraj/zephyr,finikorg/zephyr,Vudentz/zephyr