Create folders before copying file during generator finalization.

[JudgeFish]

trafficstars

Fixes #2145 Should be a simple start for my first contribution on github :)

Only tested on https://github.com/dayllenger/beamui.git so far. dub generate visuald :opengl now works and project files are generated.

Other older issues with relative paths in visuald generated subprojects are still hindering it to build though. Might have a solution for this later...

regards /Thomas

[dlang-bot]

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[Geod24]

Wouldn't it make more sense to have it be part of hardLinkFile ?

[JudgeFish]

Looking at hardLinkFile(), it looks rather low-level so I would propose keeping it clean from extra behavior.