Create HEC Search class

File: /prrt/hec_search.py

class AbstractSearch():
    def search(self, channelParameters, systemParameters, applicationParameters):
        raise NotImplemented()


class HECFullSearch(AbstractSearch):
   def __init__(self, np_max):
      self.n_max = 255
      pass 

   def search(self, channelParameters, systemParameters, applicationParameters):
      self.k_lim = somewhat(applicationParameters.loss_tolerance, self.n_max)
      # magic happens here
      return CodingConfiguration()