Add makefile version-bump

[sameh-farouk]

Description

This PR add Makefile with a version-bump function that automate the version incrementing within the repo files.

# usage: > type=patch|minor|major make version-bump

it will also create the branch, the commit, and increment the spec_version and all other files mentioned in the release doc

Related Issues:

#975

[renauter]

Great initiative!
Would be good to update the documentation here https://github.com/threefoldtech/tfchain/blob/development/docs/production/releases.md and also add a link to the versioning rules convention we are using (I don t remember where it is...).

I guess here https://github.com/threefoldtech/home/blob/master/wiki/contribution/release_process.md

[sameh-farouk]

Great initiative! Would be good to update the documentation here https://github.com/threefoldtech/tfchain/blob/development/docs/production/releases.md and also add a link to the versioning rules convention we are using (I don t remember where it is...).

I guess here https://github.com/threefoldtech/home/blob/master/wiki/contribution/release_process.md

Release doc updated! let me know if it is clear enough.
For the other doc and the versioning rules convention update lets do it on another PR later

[renauter]

Clear enough!
I suggest some documentation adjustments and we are all good

Ah and the codacy check is complaining
Probably md file is not formatted as expected

[renauter]

I changed the codacy parameters here
https://app.codacy.com/p/542167/patterns/list?engine=547ff16b-d57c-4d75-8067-5ccf3ea88a00
to allow more than 80 characters lines (I set it to 200) for code pattern MD013 - Line length of markdownlint 0.33.0 tool.
And now it is all green from codacy side.