Coding standard and code tidy

• Tested up to WordPress 6.4.2.
• Bump minimum WordPress version to 5.3, aligning with minimum PHP support.
• A bunch of code tidy, fix coding standards, typos, and CI. h/t @szepeviktor
• Add github actions

Fix duplicated plugin headers

Remove duplicated plugin header to fix fresh install error.

Updates & Refactoring

• Update tested WP up to 6.1.1
• Update minimum PHP to 7.4
• Restructuring files to match plugin boilerplate structure.
• Add phpstan and phpcs checks.
• Create a contributing.md file.
• Add a .distignore file.

Github Actions to deploy to WP.org

Update Github Action to publish from github to WP.org.

Error Log Bugfix & Code Tidy

• Removed unnecessary logging functions and added a debug check before logging anything.
• Tidy up code spacing and inline-documentation.
• Added STF_DEBUG for use in error logging function with WP_DEBUG, both must be true before error logging is output to the debug.log file.

Add Conditional Tag Support to Exclude Filter

Moved the set_header_scripts function into a wp_head add_action to allow for conditional checks to work within the stf_exclude_scripts filter.

Add Support For Disabling Plugin on 404 pages

Adds the ability to disable the plugin on 404 pages via an admin setting. Thanks to @piscis for getting this ball rolling.

Custom Taxonomy Bugfix

Fix a bug with the custom taxonomy archive include filter and update some error logging functions.

Version 0.6.0

Large number of improvements:

• Add settings page with global disable options for home page, search pages, post type archives, taxonomy archives, and other archives.
• Update uninstall.php to remove things correctly.
• Add FAQ to readme.txt and readme.md.
• Add a changelog as a separate file.
• Change the custom post type filter. Refer to updated FAQ and documentation.
• Add support for custom taxonomy archives.
• Change the exclude filter, to be more relevant to the new options. Older filter is depreciated, but still supported (for now).
• Update the post meta for disabling the plugin on specific posts/pages.
• Add Github Updater support.
• Removed CMB and built metaboxes the old fashion way.
• Added debug logging to better track any potential errors moving forward.

Beta 0.6 version

Using this tag for Github Updater tests, beta version