Summary:
buffer.h gained the ability to deal with non-char-sized buffers when I built cdatapack. We need to update the callers in ctreemanifest to be aware of this. Most of this is done with macro magic.
Some functionality was dropped from cdatapack's buffer.h (macro definitions to deal with paths). Those are moved to path_buffer.h
Test Plan:
make local && clion build.
pass cfastmanifest unit tests.
Reviewers: #fastmanifest, durham
Reviewed By: durham
Subscribers: mitrandir, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D3780767
Signature: t1:3780767:1472255278:40a19edfd171df5804e9cdfa4444d5c6386f00e8