Summary:
Summary of the changes
 ---
- Fix broken MSVC build:
  - Compiling `GenerateFingerprintTables.cpp` complained about missing header file `glog/logging.h`.
  - Targets `GenerateFingerprintTables` and `folly_fingerprint` don't specify `FOLLY_INCLUDE_DIRECTORIES` in its include directories.

* Introduce a "shiny" target `folly_deps` for managing folly's dependencies and interface specification.
  * `folly_deps` is an [INTERFACE library target](https://cmake.org/cmake/help/v3.0/command/add_library.html).
  * It encapsulates the interface dependencies (compile definitions, include directories, link libraries, etc.) for other targets.
  * The usage of the new target is clean and simple:
    `target_link_libraries(<target_name> (PUBLIC|PRIVATE) folly_deps)`
    (except for OBJECT library targets, like `folly_base` - included in the change).

Possible modifications
 ---
The name `folly_deps` could be replaced with a better one.
The target can be extended to include the PUBLIC compile options set on individual targets.
Reviews and suggestions welcome.
Closes https://github.com/facebook/folly/pull/818

Reviewed By: simpkins

Differential Revision: D7642870

Pulled By: Orvid

fbshipit-source-id: c1c5fdae67f5a677c82f05757217af6b6de9db02