Platform types

These data types are stable and will generate the exact same size on any platform.

• vector128_t 128 bit vector intrinsic.
• int_t Signed integer.
• uint_t Unsigned integer.
• fixed2_30_t Signed 2.30 32 bit integer for fixed point operations.
• fixed16_16_t Signed 16.16 32 bit integer for fixed point operations.