Support other types than DBL

[CyGaNeo]

Data stored in the reflective memory can be stored in flavors of data types which are mulitple of bytes (U8, I8, U16, I16, U32, I32, SGL, DBL).
At this time the CD only supports getting data from 64-bit wide spaces. It is then technically unfeasible to read data stored in something else than DBL from the memory.

Handling basic types listed is a must-have.