echoprint-codegen: fix build on 10.10

Fixes #35299.

Closes #35320.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
echoprint-codegen: update 4.12_1 bottle.
echoprint-codegen: style improvements
Number Base Converter: nbc 0.1
nbc: add 0.1 bottle.