tools/import-trace: new tool to import traces into MySQL database

The import tool does support the following import strategies:

- BasicImporter: generates def-use equivalence classes for read and
  write memory accesses
- DCiAOKernelImporter: generates equivalence classes for read access in
  the ciao kernel space.

Change-Id: I8960561d3e14dcf5dffa3ff7a59b61a5e8f7e719

CMakeLists.txt

@@ -65,8 +65,10 @@ include_directories(${CMAKE_BINARY_DIR}/src/core)
 # FIXME: this should be in src/core/CMakeLists.txt but actually doesn't work
 
 ## Add CMakeLists from subdirectories:
+add_subdirectory(tools)
 add_subdirectory(src)
 
+
 #### Backend-related build system stuff
 include(bochs)
 include(gem5)