Fixes, improvements and dependencies updates

Feature:

• Include color in CreditMemoChannel to display it properly #90
• Pre-select original payment method for refund payment #101

Improvements:

• Unify channel columns in grids between this plugin and Sylius/InvoicingPlugin #90
• Mention default_bus configuration in installation process #103
• Add wkhtmltopdf requirement in README #104

Maintenance:

• Use services from FriendsOfBehat/PageObjectExtension #102
• Require symfony/messenger in ^4.2 version #107

Relate RefundPayment with Payment & bugfixes & improvements

New fatures:

• Relate RefundPayment with Payment #85
• Support only offline payment methods #86

Fixes

• Partial refund inputs UI validation #84
• Partial shipping refund display on credit memo #94
• Remove unnecessary config for Sylius Mailer #97

Improvements

• Migrations namespace changed from Sylius/Migrations to DoctrineMigrations #77
• "Fully refunded label" display improved #81
• Partial refund inputs display improved #84
• CODEOWNERS added #88
• Security issues section added #92
• Hide unneeded "refund" button #96
• Switch from Prooph to Symfony Messenger #89

Event about refund payment generation + test application structure change

Improvements:

• services.xml loaded in DI extension
• knp_snappy configuration removed from config.yml (as plugin supports SymfonyFlex)
• Refund payment methods resolved with order channel
• RefundPaymentGenerated event thrown after RefundPayment generation

Bug fixes:

• Credit memo sorting finally fixed

Tests:

• Symfony4 catalog structure introduced to test application

Make Sylius plugin unique again

Thanks to support of sylius-plugin composer type in SymfonyFlex server.

SymfonyFlex preparation

Type of the package has been changed in composer.json to make it valid for symfony-flex-server bot. Release is required to test this approach 🍻

Partial shipment refunds + polishing and improving

New features:

• Partial shipment refunds

Bug fixes:

• Not being able to refund shipment if there is no shipment on order
• Refunding multiple units from multiple items fixed
• Redirecting to order show page after accessing refund page of the unpaid order

Improvements:

• Credit memo ID changed to UUID from integer
• Added missing migrations
• Ordering credit memos by number
• ECS included in a build
• Credit memo comment changed to text to avoid length constraint
• Documentation upgrades
• Update dependencies to allow installing with SymfonyFlex

Credit memos + refund process enhancements

Credit Memo related:

• Browsing and downloading Credit Memos as a Customer
• Browsing and downloading Credit Memos as an Administrator
• Filtering Credit Memos as an Administrator
• Sending Credit Memo to a Customer when its generated

Refund related:

• Choosing payment method when making a Refund
• Making a partial refund of an Order Item

Shipping refunding and credit memos generation

New features:

• refunding order shipment (single-shipment support)
• simple credit memo generation (with credit memo number, order number, total and refunded units)

Improvements:

• refunding all order units with one click
• already refunded units application test
• not being able to refund units from not paid order
• back button added to refunds page
• marking an order as fully refunded when the refunded total is equal to the order total

Real migration fix

Merge pull request #7 from Zales0123/fix-migration-one-more-time

Fix migration FOR REAL

Migration fix

• wrong migration fixed
• added missing refunds button on order show page