* Updated install_dependencies.sh
* Added Fedora support
* Improvements for RPM generation
* Refactored work with gflags
* Apply suggestions from code review
* Improvements
* Several improvements for Ubuntu 18.04
* Improvements in gflags
* Update thirdparty/CMakeLists.txt
temporary install samples dependencies
* Fixed several mistakes
* Fixed issues with gflags
* Don't install dependencies on Linux
* Added nlohmann findinds on debian9 case
* Added FATAL_ERROR is gflags is not found in samples
* Fixes for samples on CentOS 7
* Cross-compiled debian packakges with proper libraries location
* Fixed include for old nlohman-json versions
* Fixed compilation with old json
* Applied review comments
* Added support of old nlohmann versions via submodule
* Temporary WA for CentOS 7
* Fixed compilation with old gflags
* Fixed compilation of C samples
* Fixed gflags on RHEL8.2 / Debian 9