Added check to ensure swig exe exists before calling
Added check to ensure swig exe exists before calling

mklight/eCMD,open-power/eCMD,open-power/eCMD,mklight/eCMD,open-power/eCMD,open-power/eCMD,mklight/eCMD,open-power/eCMD,mklight/eCMD,mklight/eCMD