Refactoring encoder analyzer output, to reduce interaction with macros and to group similar variables.

add trailing slash to InputPathPrefix when it is combined with a file name (same behavior as VTM/BMS)

Patch-by: Robert Skupin <robert.skupin@hhi.fraunhofer.de>

required in CTC

- fix a clang warning about variable name shadowing

Added InputPathPrefix option to encoder and removed various paths from per-sequence configuration files.

Introduces some C++11 initialization (and required compiler flags for
old gcc)

Original patch by: Adarsh Krishnan Ramasubramonian <aramasub@qti.qualcomm.com>

(initial commit, requires some more work)

Patch-by: Adarsh Krishnan Ramasubramonian <aramasub@qti.qualcomm.com>

- adds functionality to read/write i(n) type syntax elements

Patch-by: Alexandros Tourapis <atourapis@apple.com>

fixes also memory allocation issue (never freed)

Patch-by: Karl Sharman <Karl.Sharman@sony.com>

Patch-by: Xu, Qian Z <qian.z.xu@intel.com>

Patch-by: Robert Skupin <robert.skupin@hhi.fraunhofer.de>

Patch-by: Alireza Zare <alireza.zare@nokia.com>

Patch-By: Alireza Zare <alireza.zare@nokia.com>