APP: Added MEM-AP read handler.
APP: Added MEM-AP read handler.

As initial MEM-AP support is being worked on in LibSWD, Application
Interface is ready for testing and should require no further change
 when the LibSWD part is ready.

shangdawei/LibSWD,shangdawei/LibSWD,cedar-renjun/LibSWD,cedar-renjun/LibSWD,ongjohn/LibSWD,ongjohn/LibSWD,ongjohn/LibSWD,cedar-renjun/LibSWD,shangdawei/LibSWD