pvr: add options and support for anime (#17)

* pvr: begin adding options

* pvr: add ability to configure add behaviour via config

* pvr: add skip_anime

* pvr: do not continue processing item if lookup failed or add to pvr failed

util/slice.go

@@ -0,0 +1,12 @@
+package util
+
+import "strings"
+
+func StringSliceContains(slice []string, val string) bool {
+	for _, s := range slice {
+		if strings.EqualFold(s, val) {
+			return true
+		}
+	}
+	return false
+}