Add media_image and entity_reference support for "hook_field_migration_field_formatter_info" [#3332543]

Problem/Motivation

Trying to migrate media entity fields, entitiy reference fields or using "Media migration", which converts all image fields to media fields, will fail with the following message:

[error] The "photoswipe" plugin does not exist [...]

This is caused through "hook_field_migration_field_formatter_info" not supporting media or entity_reference fields.

Steps to reproduce

Proposed resolution

Add media_image and entity_reference support for "hook_field_migration_field_formatter_info".

Remaining tasks

User interface changes

API changes

Data model changes

Issue fork photoswipe-3332543

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3332543-add-mediaimage-and changes, plain diff MR !65
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