Add an os_telemetry_collector service

os_telemetry_collector implements reading of Сeilometer samples
from RabbitMQ and pulling them to InfluxDB (samples) and
ElasticSearch (resources)
diff --git a/metadata/service/ceilometer_collector/single.yml b/metadata/service/ceilometer_collector/single.yml
new file mode 100644
index 0000000..bfc6e75
--- /dev/null
+++ b/metadata/service/ceilometer_collector/single.yml
@@ -0,0 +1,8 @@
+applications:
+- heka
+classes:
+- service.heka.support
+parameters:
+  heka:
+    ceilometer_collector:
+      enabled: true