Initial work on rapl-daemon. Initial server set up. API to read max power per zone and API to write new power cap have both been written.

rapl-daemon/README.md

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+# RAPL Daemon
+
+This runs a server that is capable changing the percentage at which
+a node is being throttled using RAPL. This daemon should be installed
+on all worker nodes.
+
+### Sample payload for testing:
+```
+ curl --header "Content-Type: application/json" \
+  --request POST \
+  --data '{"percentage":75}' \
+  http://localhost:9090/powercap
+ ```