Better branding of -betterC

[Walter Bright]

On 10/29/2020 5:00 AM, rikki cattermole wrote:
> Runtime less D and pay-as-you-go.
> 
> These are being worked on over time. They are basically the same thing, use as 
> much of druntime as you want (i.e. some, or none).
> 
> -betterC fills its role, and doesn't need rebranding.

Future efforts with the library will be for so-called "header only" libraries, 
where one just imports the library module, and there's no need to link the 
library too.