chore: update project version to 0.20.0

Author: gilmar-sales

CMakeLists.txt

@@ -27,7 +27,7 @@ if (FREYR_PROFILING)
     add_subdirectory(vendor/perfetto)
 endif (FREYR_PROFILING)
 
-project(freyr LANGUAGES C CXX VERSION 0.19.11)
+project(freyr LANGUAGES C CXX VERSION 0.20.0)
 
 if (FREYR_BUILD_EXAMPLES)
     add_subdirectory(examples)