Moved everything out of internal

api/urlbuilders/performer.go

@@ -0,0 +1,19 @@
+package urlbuilders
+
+import "strconv"
+
+type performerURLBuilder struct {
+	BaseURL string
+	PerformerID string
+}
+
+func NewPerformerURLBuilder(baseURL string, performerID int) performerURLBuilder {
+	return performerURLBuilder{
+		BaseURL: baseURL,
+		PerformerID: strconv.Itoa(performerID),
+	}
+}
+
+func (b performerURLBuilder) GetPerformerImageUrl() string {
+	return b.BaseURL + "/performer/" + b.PerformerID + "/image"
+}