potential roadmap: clarifications and feature completeness

[matu3ba]

clarifications:

• write 1. binary fixed point or change to Basic binary fixed point implementation, 2. decimal fixed points planned?
• negative values: 1. remains unsupported?, 2. sign-magnitude format, 3. two's complement representation
• hardware support planned or not?

feature completeness:

• comptime and runtime fns to ensure identical scaling factor of numbers
• printing fmt docs
• links to precision docs and/or how to derive them
• signed + unsigned support
• wrapping and saturation fns
• comptime and build steps examples to compute upper/lower bounds (latter used to write a zig file with constants)