Based on CasparCG Server 2.0.7-Stable by SVT

This patch-set adds some features that we believe to be critically important for building integrated automation solutions using CasparCG Server both as a Television Studio Playout Server and On-Air Graphics Playout Server for News TV Channels.

We hope to work it out together with CasparCG Development Team to merge or re-think these features into upcoming CasparCG v2.1.0 release.

• frame accurate SEEK command within h264 GOP
• 'CINFONE' AMCP command used to query single file status without scanning media/ directory
• 'INFO LAYERS' command used to query data for the a list by one AMCP command
• 'DIRECTPATH' parameter used for playing files from more than one media/ directory

• Yaroslav Polyakov (@ypolyakov)
• Iakov Pustilnik (@yapus)
• Pavel Tolstov (@ray66rus)
• Ivan Golubenko (@FedorSymkin)

CasparCG is distributed under the GNU General Public License GPLv3 or higher, please see LICENSE.TXT for details.