Add period of 30s option to TCTR1000

Author: tyeth

components/pin/tctr1000/definition.json

@@ -3,9 +3,10 @@
   "productURL": "https://www.adafruit.com/product/5913",
   "documentationURL": "https://learn.adafruit.com/adafruit-stemma-reflective-photo-interrupt-sensor",
   "displayName": "TCTR1000 Stemma Breakout",
-  "description": "Optical reflective sensor with digital output, 1-30mm range, and adjustable LED brightness",
+  "description": "Optical reflective sensor with digital output, 1-30mm range, and adjustable LED emitter brightness",
   "published": true,
   "mode": "DIGITAL",
+  "defaultPeriod": 30,
   "direction": "INPUT",
   "visualization": {
     "type": "switch",