Adds support for aggregation of phase context information for an
application. The damper value (in nanoseconds in the manifest file)
decides the minimum phase length for which the phase context
information is sent to the NRM (implemented in 'libnrm' repo
[See Issue 2]). This will limit the number of msgs sent to the NRM.

See Issue #13

DDCM based power policy is aimed to mitigate workload imbalance in parallel
applications that use barrier synchronizations (E.g. MPI). It reduces the duty
cycle of CPUs not on the critical path of execution thereby reducing energy
with little or no adverse impact on performance.

See Issue #11