Runtime dependencies for libboost

[eine]

As commented in ghdl/docker#22:

I now added libboost-all-dev to image trellis. (...) that's the same package that is installed in the build image. Ideally, there should be a (smaller) package with runtime dependencies only. For example, there are libomp-dev and libomp5-7. Are you aware of any other package (or set of packages) that we can use instead of libboost-all-dev. Note that this is not only for trellis, but also for images nextpnr, nextpnr-ice40 and nextpnr-ecp5, since all of them depend on boost.

We should be able to install the specific boost images instead of the catch all one. If I get a chance I'll take a look.

Cool. Note that this does not affect any of the features we provide; it'd just be an interesting enhancement. Hence, rather than trying to guess it ourselves, it'd be ok to just remember to ask it whenever we get the chance to talk to someone who is used to developing with boost.