message: Added ARM little endian to oscpp library
diff: defined(__ia64__) || defined(_M_IX86) || defined(_M_IA64) || \
  defined(_M_ALPHA) || defined(__amd64) || defined(__amd64__) || \
  defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || \
  - defined(_M_X64) || defined(__bfin__)
  + defined(_M_X64) || defined(__bfin__) || defined(__arm__)
  # define OSCPP_LITTLE_ENDIAN
  # define OSCPP_BYTE_ORDER OSCPP_BYTE_ORDER_LITTLE_ENDIAN
  