Refactor autotag to use individual transactions (#3106)

* Add id filtering to scenes, images, and galleries
* Perform tagging in batches
* One transaction per object tagged

pkg/models/image.go

@@ -6,6 +6,7 @@ type ImageFilterType struct {
 	And   *ImageFilterType      `json:"AND"`
 	Or    *ImageFilterType      `json:"OR"`
 	Not   *ImageFilterType      `json:"NOT"`
+	ID    *IntCriterionInput    `json:"id"`
 	Title *StringCriterionInput `json:"title"`
 	// Filter by file checksum
 	Checksum *StringCriterionInput `json:"checksum"`