add opentracing-cpp v1.5.2-2

add patch opentracing

add patch opentracing

add patch opentracing

Add 'gl4es' package (cpp-pm#143)

* Add 'gl4es' package

* Change 'gl4es' package source to cpp-pm repo

Add 'tinyrefl' package (cpp-pm#137)

* Initial tinyrefl commit

* Add url

* Add default version

* Change to cmake scheme

* Switch back to version 0.4.1

* First working version

* Cleanup for PR

* Add PR number

* Update tinyrefl release version

Add 'SFML' package (cpp-pm#135)

Update spdlog to v1.4.2-58e6890-p0 (cpp-pm#111)

Removing v prefix on spdlog

Add 'lager' package (cpp-pm#118)

* Initial commit

* First compiling version

* Rename lager to Lager

* Reorder hunter add in example

* First build with gcc

* Hunterized Lager, cleanup example

* Add pull request number

* Fix version number

Add 'Zug' package (cpp-pm#107)

* Initial commit

* First working version

* Cleanup

* Reorder build.

* Add pull request number