1. Changing extension of files with binary data to .bin.
2. Running separate benchmark for each query according to numElements in their
result.

1. Exporting query and result byte slices inside SubGraph so that they are
written to file when we write the SubGraph to file after gobencoding it.
2. Added benchmark test to benchmark ToJSON and ToProtocolBuffer methods for
actors and directors query for 10,100 and 1000 entities in the result.

Functionality to find first N results

Added helper functions for Graph response to client

preTraverse()

Removed the unnecessary extract function and result struct. Now preTraverse
directly acceses flatbuffers to get values and uidmatrix.
Renamed struct fields in the protocol buffer schema file.

1. Removed client.go and client_test.go
2. Modified protocol buffer structure to have Values as a struct which
contains byte slice.
3. Added support to calculate latency because of protocol buffer.

Set 1 min timeout on query processing

1. Protocol buffer now stores a entity based subgraph instead of a predicate
based subgraph.

HasValue and Value now look for value iteratively instead of storing it in a
map.

Removed Populate() method for entity. Now Properties() and Children() are
created during iteration.

links in README now point to discourse

Parsing and modifying the subgraph returned in the response. Provided helper
methods for the response.

Query would be needed to parse the Graph Response on the client side, hence
sending it in the protocol buffer response.

Fix bugs: Set GRPC server in Goroutine. Break out of loop if ServeRequest returns error -- this was causing the 100% CPU usage issue.