chore: jobsdb benchmark cli tool

[Sidddddarth]

Description

Scaffolding for jobsdb benchmarking tool.
A basic cli tool to run some common situations we may want to benchmark.

Includes a Dockerfile with said tool that does nothing(? - CMD ['cat', '/dev/stdout']).

Currently has one scenario - base

NAME:
   jobsdbBench - A new cli application

USAGE:
   jobsdbBench [global options] command [command options]

DESCRIPTION:
   A command line benchmark tool for jobsdb

COMMANDS:
   base     run a benchmark with m readers and n writers concurrently
   help, h  Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --help, -h  show help

options/flags for base:

NAME:
   jobsdbBench base - run a benchmark with m readers and n writers concurrently

USAGE:
   jobsdbBench base [command options]

DESCRIPTION:
   creates jobs of m sourceIDs for the writers to query. Readers query by sourceID

OPTIONS:
   --numReaders value, -m value              number of concurrent readers - test will create as many sourceIDs (default: config.GetInt("numReaders", 10))
   --numWriters value, -n value              number of concurrent writers (default: config.GetInt("numWriters", 10))
   --numJobsPerReader value, -j value        number of jobs per sourceID/reader (default: config.GetInt("numJobsPerReader", 10000))
   --eventSize value, -e value               payload size of the events in bytes(estimate) (default: config.GetInt("eventSize", 1536))
   --failurePercentage value, -f value       percentage of events that fail on the first attempt, all pass on second attempt (default: 0)
   --eventsPickedUpPerQuery value, -q value  number of events picked up per query (default: config.GetInt("eventsPickedUpPerQuery", 2000))
   --clearDB, -c                             cleardb before starting (default: false)
   --verbose, -v                             verbose benchmark script logging (default: false)
   --help, -h                                show help

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Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 320 lines in your changes missing coverage. Please review.

Project coverage is 74.37%. Comparing base (f22e8f4) to head (fe9d001).

Files with missing lines	Patch %	Lines
jobsdb/cmd/bench/cli.go	0.00%	213 Missing ⚠️
jobsdb/cmd/bench/main.go	0.00%	107 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5370      +/-   ##
==========================================
- Coverage   74.68%   74.37%   -0.32%     
==========================================
  Files         437      439       +2     
  Lines       61240    61560     +320     
==========================================
+ Hits        45737    45784      +47     
- Misses      12954    13239     +285     
+ Partials     2549     2537      -12     

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