Better handling of the vendoring

[stonier]

Currrently Works

• Downloads the unofficial driver so that it can build (not run) on the OSRC build farm.

Pain Points

• Official Driver discovery at runtime from the binary installed package
• Official Driver discovery at runtime from source compiled package <- Export environment variables?
• Official Driver discovery at compile time (or at least documentation on how to)
• Existence check at run time
• Version checking at compile time
• Version checking at runtime
• Better message at compile time, that they don't have a runtime

Highest priority for runtime discovery - should not need to do something (or very little) in addition to setup.bash.

Questions

• Unofficial Driver installation and discovery at runtime (just don't package it)

Other

No need to have a dependent vendor package - that would only be necessary if there existed N > 1 users of that package. May as well do the work here.

An installed ueye_cam (e.g. debian) should have a tool that indicates whether your runtime environment has drivers on the path.

[stonier]

• Official driver discovery works - the installer places headers and libraries into system paths. No need for more.
• Existence check via ueye_installation_check - done
• Human inspected version checking via ueye_driver_check - done

Could be more polished, but that will do for now.