Allows to contribute project functional options that user may enable for the project. Provider of project functional option and may be enable or disable for the project. contributor class implementing <code>com.e1c.v8codestyle.IProjectOptionProvider</code> interface. 0.1 Contribute one or more functional options: <pre> <extension point="com.e1c.v8codestyle.projectOptions"> <provider class="com.e1c.v8codestyle.internal.ExecutableExtensionFactory:com.e1c.v8codestyle.internal.StandardChecksProjectOptionProvider"> </provider> <provider class="com.e1c.v8codestyle.internal.ExecutableExtensionFactory:com.e1c.v8codestyle.internal.CommonChecksProjectOptionProvider"> </provider> </extension> </pre> Contributors should inplement interface: <code>com.e1c.v8codestyle.IProjectOptionProvider</code>. <br> The service <code>com.e1c.v8codestyle.IProjectOptionManager</code> manage all beheviour of functional options for the project. See <code>com.e1c.v8codestyle.internal.StandardChecksProjectOptionProvider</code> and <code>com.e1c.v8codestyle.internal.CommonChecksProjectOptionProvider</code> option providers. 1C-Soft LLC and others.