Create major versioning assistant

[t1m0thyj]

When it's time to publish a new major release of Zowe, we have to perform a lot of manual steps across each of the repos that uses Octorelease. Investigate if a tool could be created to automate some of these steps. See these PRs for an example:

• Prepare next to be merged intomaster zowe/zowe-cli-db2-plugin#162
• Publish a final prerelease from the master branch zowe/zowe-cli-db2-plugin#163
• chore: update release config to publish a major version zowe/zowe-cli-db2-plugin#165
• chore: update workflows in preparation for Zowe V3 GA zowe/zowe-cli-db2-plugin#166
• Update versions for peers zowe/zowe-cli#2287

[zFernand0]

A series of workflows could be implemented for this. Similar to how the zowe/docs-site PRs are handled with a walkthrough-like sequence of comments. 😋