Structure now takes the type of data it stores
Structure now takes the type of data it stores

The structure object should now be given a type that refers to the type
that its instances will hold alongside the timestamps.

:red_circle: TODO & NOTE :red_circle:
  FOR NOW THIS IS SET TO STRINGS ONLY. This is just so that things can
  progress. When self adaptive store comes in, this can be optimized.

shrayasr/PCache