Bundle boost

[springmeyer]

Since we currently only use boost::variant it makes sense to bundle just this part of boost. It only adds 8MB, which I think is well worth the current and future convenience of not needing an external boost.

Luckily boost is designed for this: the bcp tool is able to extract all possible headers all platforms might need for #include <boost/variant.hpp>

I created this bundle from boost 1.55 by doing:

./dist/bin/bcp boost/variant.hpp ~/projects/llmr-native/include/

[kkaefer]

Mh, not sure about this; it increases the repo size dramatically. Given that boost is easy to install by just typing brew install boost, and we're not relying on an up-to-date version of boost, for now, I'd like to not include this. I'm also not sure about staying on boost::variant for Value types since we likely need better comparisons (e.g. string to integer comparisons, and float/integer comparisons), so we might have to do a custom implementation for the value type.

[incanus]

Yeah, this is large. For our current platforms, brew install boost is enough. BTW the Brew Boost works just fine for the ARM builds I was doing over in #12. We are just using header-only stuff right now, right?

[springmeyer]

Sounds good, closing. The GYP pull (#21) now also has a configure script to make it easy to point at any custom boost location, which helps make this easier.