Redeveloping The Plugin.
Created Custom Post Type
Created Custom Taxonomy {Category & Tags}
Created Short code
Project Output Like Select , Radio [Single or grouped]
Price Box Output
Customization Template

[admin/class-admin-init.php]

Added woocommerce_screen_ids
Removed Admin Notice Handler Class Init
Added Plugins Settings Page ID To WC Screen ID

[admin/class-admin-settings.php & admin/class-donation-settings.php]

Working To Get A Prefect Settings Page

[admin/includes/class-admin-functions.php]

Changed WC_QD()->donation_id to WC_QD_ID

[includes/class-quick-donation-process.php]

Created Class To Process Front End Donation Form

[includes/class-shortcode-handler.php]

Created 2 Actions
wc_quick_donation_before_donation_form
wc_quick_donation_after_donation_form

[woocommerce-quick-donation.php]

Changed $donation_id from dynimic to static
Added WC_QD_ID defined variable

Rearranged Few Loading Files

Added Donation Processing Email
Added Prefect Settings Framework
Added Seperate Page For Listing Donations