Add information about authors, examples and version to @PlatformIO Library Registry manifest file

Signed-off-by: Roman3349 <ondracek.roman@centrum.cz>

library.json

@@ -1,22 +1,28 @@
 {
-"name": "Time",
-"frameworks": "Arduino",
-"keywords": "Time, date, hour, minute, second, day, week, month, year, RTC",
-"description": "Time keeping library",
-"url": "http://playground.arduino.cc/Code/Time",
-"authors":
-[
-{
-        "name": "Michael Margolis"
-},
-{
-        "name": "Paul Stoffregen"
-}
-],
-"repository":
-{
-    "type": "git",
-    "url": "https://github.com/PaulStoffregen/Time"
-}
+    "name": "Time",
+    "description": "Time keeping library",
+    "keywords": "Time, date, hour, minute, second, day, week, month, year, RTC",
+    "authors": [
+        {
+            "name": "Michael Margolis"
+        },
+        {
+            "name": "Paul Stoffregen",
+            "email": "paul@pjrc.com",
+            "url": "http://www.pjrc.com",
+            "maintainer": true
+        }
+    ],
+    "repository": {
+        "type": "git",
+         "url": "https://github.com/PaulStoffregen/Time"
+    },
+    "version": "1.5",
+    "homepage": "http://playground.arduino.cc/Code/Time",
+    "frameworks": "Arduino",
+    "examples": [
+        "examples/*/*.ino",
+        "examples/*/*/*.pde"
+    ]
 }