Put universal library into separate subdirectory
Remove unused include
Make module functions inline to avoid linker errors
Fix synth output mapping in example
Upgrade to boost 1.53 and remove boost_lockfree submodule

Closes #18
Fix response processing in C++ client header

Previously, the response promise was set with an OSC packet pointer that only
had a lifetime for the duration of the response callback, leading to a dangling
reference. Now we parse the OSC packet directly in the callback and pass the
result to the promise by copying.
Merge branch 'develop' of github.com:samplecount/methcla into develop