modified for MSVC(Intel)

I modified roboptim-core  for Intel Compiler on MSVC environment.
- added boost macro for MSVC compiler in CMakeList.txt
- added macro to build MSVC dll in CMakeList.txt
- modified to install MSVC debug information in CMakeList.txt
- deleted ROBOPTIM_DLL_API because they are not created in the library.
- added namespace in front of the function "bind"
- changed the encoding from UTF8 to UTF8(with BOM) for Windows environment.