Added option with_examples and version info.

meson.build

@@ -12,6 +12,7 @@
 
 
 project('unity', 'c',
+    version         : '2.4.3',
     license         : 'MIT',
     meson_version   : '>=0.50.0',
     default_options : 
@@ -77,3 +78,8 @@ unity_dep = declare_dependency(
     version: meson.project_version(),
     link_with: unity_lib,
     include_directories: unity_dir)
+
+
+if get_option('with_examples').enabled()
+    subdir('examples')
+endif
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