cdop/repo: General FOSS monorepo, for everything that is not a readily importable go module. Each top level folder is a library/project/thing on its own and is shared under the terms of its own license.

Davide 0ad5d2e334 cpp-knobs: added to repo		1 vuosi sitten
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screenshot.png	0ad5d2e334 cpp-knobs: added to repo	1 vuosi sitten