fix version

Author: JanCaha

los_tools/metadata.txt

@@ -6,7 +6,7 @@
 name=LoS Tools
 qgisMinimumVersion=3.30
 description=This plugin creates and analyzes lines-of-sight (LoS) and also provides supporting tools.
-version=1.2.1
+version=2.0.0
 author=Jan Caha
 email=jan.caha@outlook.com