Add a lot of standard physics data files for geant4

Packages describing “data” as local USE flag

Package “data” Flag Description
sci-physics/geant Add a lot of standard physics data files for geant4
sci-geosciences/gshhs Add earth data with sci-geosciences/gshhs-data
dev-libs/poco Database abstraction layer to easily send/retrieve data to/from various databases
games-action/dxx-rebirth Ensure some game levels are present; if the full game's level data is not already installed then install the playable demo data (i.e. shareware levels)
sci-mathematics/pari Add additional data (elldata, galdata, seadata, nftables)

All packages providing a “data” USE flag (1)