Master "dplug" tool

[p0nce]

Following #749 , here is an idea:

make a "dplug" tool that internally calls "dub run", then you will be able to type $ dplug bench ( and I guess dplug-build could be renamed to just build at least the sub-package).

• dplug-build should show its version with --version, in order to track the dplug tag?
• rename dplug-build subpackage to "build", keep executable name This way the entire command-line is delegated and it is inconsistent, but easy to maintain.

The goal

Before: dub run dplug:bench -- --help After: dplug bench --help

[p0nce]

Well, there is now a tools/master-tool package, that create a dplug executable with minimal feature set.

[p0nce]

Reopen this bug:

• [ ] master tool is proposed as download in GitHub
• [ ] master tool should be able to build an example and do most things