plugin: Version 0.8.0a4

* Updated libOBS to 25.0.3.
* Improved support for Ubuntu 16.04 and 18.04, for both GCC 8 and GCC 9.
* Fixed #116: Regression from 0.7.1 to 0.8.0.
* Fixed transitions not showing up.
* Added Shader Transitions, Shader Sources and Shader Filters.
* Added new example files for the new Shaders integration.
* Added Nvidia Face Tracking filter (requires compatible Nvidia RTX GPU and Nvidia AR SDK Runtime).

CMakeLists.txt

@@ -23,7 +23,7 @@ set(VERSION_MAJOR 0)
 set(VERSION_MINOR 8)
 set(VERSION_PATCH 0)
 set(VERSION_TWEAK 0)
-set(VERSION_SUFFIX "a3")
+set(VERSION_SUFFIX "a4")
 set(PROJECT_COMMIT "N/A")
 if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/.git")
 	set(GIT_RESULT "")