Performer disambiguation and aliases (#3113)

* Refactor performer relationships
* Remove checksum from performer
* Add disambiguation, overhaul aliases
* Add disambiguation filter criterion
* Improve name matching during import
* Add disambiguation filtering in UI
* Include aliases in performer select

pkg/models/jsonschema/performer_test.go

@@ -0,0 +1,52 @@
+package jsonschema
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_loadPerformer(t *testing.T) {
+	tests := []struct {
+		name    string
+		input   string
+		want    Performer
+		wantErr bool
+	}{
+		{
+			name: "alias list",
+			input: `
+{
+	"aliases": ["alias1", "alias2"]
+}`,
+			want: Performer{
+				Aliases: []string{"alias1", "alias2"},
+			},
+			wantErr: false,
+		},
+		{
+			name: "alias string list",
+			input: `
+{
+	"aliases": "alias1, alias2"
+}`,
+			want: Performer{
+				Aliases: []string{"alias1", "alias2"},
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := strings.NewReader(tt.input)
+			got, err := loadPerformer(r)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("loadPerformer() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+
+			assert.Equal(t, &tt.want, got)
+		})
+	}
+}