Compare Pravega vs Pulsar performance using SBK

[kmgowda]

Describe the Issue (Bug/Feature)
Compare Pravega and Pulsar performance using SBK

To Reproduce
make the Pravega and Pulsar 3 nodes setup at least for baremetal setup

use option "-class Pravega" for pravega performance benchmarking
use option "-class redpanda" for Pulsar for performance benchmarking
while running sbk use option "-csvfile " to store the results in csv file
use the csv files containing the performance results of Pravega and Pulsar as inputs to sbk-charts to generate the excel file with graphs.

Expected behavior
performance result graphs in grafana or in excel file

Additional context
for pravega examples refer here : https://github.com/kmgowda/SBK/tree/master/driver-pravega
for pulsar example refer here: https://github.com/kmgowda/SBK/tree/master/driver-pulsar
for sbk-charts examples refer here: https://github.com/kmgowda/SBK#sbk-charts
for grafana examples refer here: https://github.com/kmgowda/SBK#grafana-dashboards-of-sbk