3rd party modules updater for updatenotification (#3150)

Added my (modified) updater main core into updatenotification default
module

Missing: callback display in MM² (i will code it after)

new part of configuration added:

```
		updates: [
			// array of module update commands
			{
				// with embed npm script
				"MMM-Test": "npm run update"
			},
			{
				// with "complex" process
				"MMM-OtherSample": "rm -rf package-lock.json && git reset --hard && git pull && npm install"
			},
			{
				// with git pull && npm install
				"MMM-OtherSample2": "git pull && npm install"
			},
			{
				// with a simple git pull
				"MMM-OtherSample3": "git pull"
			}
		],
		updateTimeout: 2 * 60 * 1000, // max update duration
		updateAutorestart: false // autoRestart MM when update done ?
```

@khassel: i need your help
I don't use docker, maybe you can help me for this:
How can i check if MM² is running inside a docker ? (from MM² main core)
Actually, I check if we use pm2 or not.
I have to check if docker is used or not too
last time you tell me: "you can't use updater with docker", so I want to
check and deny any update if docker used

---------

Co-authored-by: bugsounet <bugsounet@bugsounet.fr>

modules/default/updatenotification/updatenotification.njk

@@ -1,4 +1,13 @@
 {% if not suspended %}
+    {% if needRestart %}
+        <div class="small bright">
+            <i class="fas fa-rotate"></i>
+            <span>
+                {% set restartTextLabel = "UPDATE_NOTIFICATION_NEED-RESTART" %}
+                {{ restartTextLabel | translate() | safe }}
+            </span>
+        </div>
+    {% endif %}
     {% for name, status in moduleList %}
         <div class="small bright">
             <i class="fas fa-exclamation-circle"></i>
@@ -12,4 +21,21 @@
             {{ subTextLabel | translate({COMMIT_COUNT: status.behind, BRANCH_NAME: status.current}) | diffLink(status) | safe }}
         </div>
     {% endfor %}
+    {% for name, status in updatesList %}
+        <div class="small bright">
+            {% if status.done %}
+                <i class="fas fa-check" style="color: lightgreen;"></i>
+                <span>
+                   {% set updateTextLabel = "UPDATE_NOTIFICATION_DONE" %}
+                   {{ updateTextLabel | translate({MODULE_NAME: name}) | safe }}
+                </span>
+              {% else %}
+                <i class="fas fa-xmark" style="color: red;"></i>
+                <span>
+                    {% set updateTextLabel = "UPDATE_NOTIFICATION_ERROR" %}
+                    {{ updateTextLabel | translate({MODULE_NAME: name}) | safe }}
+                </span>
+            {% endif %}
+        </div>
+    {% endfor %}
 {% endif %}