Sink specific configuration maps (#25)

* Use sink-specific configurations to have more flexibility. Adjust sample sink configuration files

* Add documentation

* Add links to individual sink readmes

* Fix link in README

* HTTPS for HttpSink

* If no CPU die id available, use the socket id instead

sinks/stdoutSink.md

@@ -0,0 +1,22 @@
+## `stdout` sink
+
+The `stdout` sink is the most simple sink provided by cc-metric-collector. It writes all metrics in InfluxDB line-procol format to the configurable output file or the common special files `stdout` and `stderr`.
+
+
+### Configuration structure
+
+```json
+{
+  "<name>": {
+    "type": "stdout",
+    "meta_as_tags" : true,
+    "output_file" : "mylogfile.log"
+  }
+}
+```
+
+- `type`: makes the sink an `stdout` sink
+- `meta_as_tags`: print all meta information as tags in the output (optional)
+- `output_file`: Write all data to the selected file (optional). There are two 'special' files: `stdout` and `stderr`. If this option is not provided, the default value is `stdout`
+
+