Minify images, fix validation schema error due to missing i2cAddresses list

Author: brentru

components/i2c_output/chardisplay20x4/image.png

@@ -1,5 +1,5 @@
 {
-  "displayName": "Quad Alphanumeric Display",
+  "displayName": "Quad Alphanum. Display",
   "published": true,
   "vendor": "Adafruit",
   "productURL": "https://www.adafruit.com/product/1911",

components/i2c_output/quadalphanum/definition.json

@@ -2,7 +2,7 @@
   "title": "I2C Output Component Definition",
   "description": "I2C Output component for use in Adafruit IO",
   "type": "object",
-  "required": [ "displayName", "vendor", "outputType"],
+  "required": [ "displayName", "vendor", "outputType", "i2cAddresses"],
   "additionalProperties": false,
   "properties": {
     "displayName": {
@@ -37,6 +37,14 @@
       "minLength": 3,
       "maxLength": 24
     },
+    "i2cAddresses": {
+    "description": "List of supported I2C addresses for this component.",
+    "type": "array",
+    "items": {
+        "type": "string",
+        "pattern": "^0x[0-9A-Fa-f]{2}$"
+      }
+    },
     "outputType": {
       "description": "The type of i2c output component. Corresponds to `I2cOutputAdd` in i2c.proto",
       "type": "string",