Slowly the amount of cpp sources has been growing to the point
where its just too much to store in the root of the project.
I think they are more happy in a subdir as well, getting an elevated
position for themselves.
This new allows a value to be set as a number, for instance from the
user reading a QR code, and the "typed-value" is created from this
in order to allow the user to edit it instead of overwrite it.
To avoid recompiles and such generally to simplify stuff, this
moves all the code into a static lib that is then linked with
by the various apps (including tests).
tomFlowee