TSK JNI Native Library Loading

* Updated Visual Studio Solution File and the associated projects to add a 64 bit build configuration. The 32 bit target will output the files to the same location as before, the 64 bit target will output the files into win32/x64/Release.
* Added a LibraryUtils class to the Sleuthkit JNI which extracts the libraries from the jar file to the temp directory and then loads them.
* Updated the JNI build script to add a folder to the TSK_Datamodel.jar file which holds libraries that the TSK JNI loads at runtime. The directory structure now looks like:

- TSK_Datamodel.jar
   - build
        - NATIVELIBS
             - (Architecture, ex. x86)
                  - win
                  - mac
                  - unix
             - (Other architectures...)
        - org