Bump version to 2.0.0 due to API changes

Since this version changes the interface by removing SetVibration() and
requiring a vibration parameter in SendNotify(), it makes sense to
update the major version number to allow this change to be detected by
software that uses asteroidsyncservice.

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.15)
-project(asteroidsyncservice VERSION 1.0.0 
+project(asteroidsyncservice VERSION 2.0.0 
     DESCRIPTION "A synchronization daemon for AsteroidOS watches"
 )