Indentical header names, different contents

[bagder]

Hey, issue #151 mentions how dictionary.h exists in two versions in enc/ and dec/ while they perhaps should be identical.

What about other headers like streams.h that exist in both directories but are very different?

I've been putting together a little build setup that creates a libbrotli so that we can write test applications easier against the brotli code and when we install the public headers I would like to put them into the same directory (under brotli/) mostly since using more than one slash for a public header for a library is quite unusual for C and C++ programs.

As I suspect you too might want to do this at some point, or just help my project function, I figure it could be an idea to consider having different headers use different file names even when they are in a different directory in your source tree.

[bagder]

We decided having them as two libs might be the best way forward, so having the files in separate directories then became less of an issue...