Bump version to v0.22.0

This is because this introduces some breaking changes (re-ordering of enum)

Author: saxbophone

CMakeLists.txt

@@ -23,7 +23,7 @@
 # begin basic metadata
 cmake_minimum_required(VERSION 3.0)
 
-project(libsaxbospiral VERSION 0.21.2 LANGUAGES C)
+project(libsaxbospiral VERSION 0.22.0 LANGUAGES C)
 
 # set default C standard to use (C99) if not already set
 if(NOT DEFINED SAXBOSPIRAL_C_STANDARD)