It provides some APIs for binding developers, so that
they can validate the type of the js argument and convert/assign them
to the native argument.
Related Issue: #1716
JerryScript-DCO-1.0-Signed-off-by: Martijn The martijn.the@intel.com
JerryScript-DCO-1.0-Signed-off-by: Zidong Jiang zidong.jiang@intel.com