Implemented version tool

[youknowqyh]

Implemented a version tool to update version number everywhere.

For example, we want to change version number from 1.0.1-dev to 1.1.1-alpha

I use grep command to check whether the script works.

References to other Issues or PRs or Relevant literature

Implemented #444

Brief description of what is fixed or changed

Other comments

[codecov[bot]]

Codecov Report

Merging #466 (ce1c52f) into master (c0d2786) will decrease coverage by 0.463%. The diff coverage is 18.181%.

@@              Coverage Diff              @@
##            master      #466       +/-   ##
=============================================
- Coverage   98.549%   98.086%   -0.464%     
=============================================
  Files           29        30        +1     
  Lines         3792      3814       +22     
=============================================
+ Hits          3737      3741        +4     
- Misses          55        73       +18     

Impacted Files	Coverage Δ
version_tool.py	18.181% <18.181%> (ø)

[czgdp1807]

Sorry for the delay in reviewing.