Draft: Resolve "Compute: First Network"

Closes #91

modules/compute/config/NNEF-Tools.cmake

+
+if (EXISTS "${vkcv_compute_lib_path}/NNEF-Tools")
+
+	add_subdirectory(${vkcv_compute_lib}/NNEF-Tools/parser/cpp)
+	
+	list(APPEND vkcv_compute_libraries nnef)
+	list(APPEND vkcv_compute_includes ${vkcv_compute_lib}/NNEF-Tools/parser/cpp/include)
+else()
+	message(WARNING "NNEF-Tools is required..! Update the submodules!")
+endif ()