Gamajo-Template-Loader

• Fix coding standards.

• Add prefixed get_template_part filter.
• Add a template cache to store previously located template paths.
• Add a custom data variable name cache, so unset_template_data() can remove all custom references.
• Update set_template_data() and unset_template_data() to become fluent methods.
• Remove array type hint from set_template_data() argument.
• Update documentation.

• Support adding custom template data.
• Add check around class definition if class exists.
• Added composer.json.
• Fix code standards.
• Improve README.
• Move example meal planner class into README.

Small bug fixes and improvements.

Thanks to @bradyvercher, @grappler and @wpsmith.

Initial release. Exists to be used verbatim within other plugins as a template loader, allowing template parts to be searched for in child theme, parent theme and finally the plugin itself (though this list is individually filterable per plugin).