Basic WordPress Plugin Frameworks For New WP Developers With No Page, With Admin Page.
|---basic.php (just ordinary basic plugin framework)
|------basic.php.zip (ready to upload zip of the above as plugin)
|---shell.php (one option page with no physical separate php page)
|------custom.php.zip (ready to upload zip of the above as plugin, UPDATE - do not use it, use shell.php. zip that to use. Has minor bug.)
|---complex (has admin page and a submenu)
|------complex.zip (ready to upload zip of the above as plugin)
Just download this repo and start working for your need. New Wordpress developers frequently need these. custom.php is recomanded to use for complex work. Tested.
Details : https://thecustomizewindows.com/2015/05/bare-wordpress-plugins-with-admin-page-for-your-dev-works/