DevMgr: Add DeviceReattacher daemon plumbing

This is the plumbing for a periodic polling thread that tries
to reattach DA specs that failed to attach in the startup phase.

smocore/CMakeLists.txt

@@ -25,6 +25,7 @@ add_library(smocore STATIC
 
     # DeviceManager
     deviceManager/deviceManager.cpp
+    deviceManager/deviceReattacher.cpp
     deviceManager/deviceAttachmentPipeSpecParser.cpp
     ${LEX_OUTPUT}
     ${YACC_OUTPUT}