Adjust project version to be 0.1

meson.build

 project('pi2-view', ['cpp', 'c'],
     license: 'GPL3',
     meson_version: '>=0.47.0',
-    version: '1.0-SNAPSHOT',
+    version: '0.1',
     default_options : ['warning_level=3', 'werror=true', 'cpp_std=c++17', 'c_std=c11']
 )