Add semantic-release maven plugin

[nidotls]

semantic-release recognizes through conventional commits (https://www.conventionalcommits.org/en/v1.0.0/) if a patch, minor or major should be released and then creates a Github package release accordingly via the Github workflows (alternatively also convertible to any repo).

To use this PR, every commit that triggers a release must be published in the conventional commit format. In addition, there must be a develop branch. It is possible to work in master but best practice would be a develop branch.

See it in action:

• https://github.com/thenilsdev/Nameless-Java-API/releases
• https://github.com/thenilsdev/Nameless-Java-API/actions
• https://github.com/thenilsdev/Nameless-Java-API/packages/992232

Solves #18

[Derkades]

This sounds great, it's all new to me so I'll have to do some reading before merging this (when v2 is released). I was planning on having a separate development branch regardless, but all this release automation seems like a great idea. Thank you for this pull request.

[Derkades]

Is the maven wrapper required for this? If possible, could you separate it into a different PR?

[nidotls]

The Maven wrapper is not needed for this, it is sufficient if the extension file is located in the .mvn folder. If needed it can be readded to the project via mvn -N io.takari:maven:0.7.7:wrapper. I always like to use this, because so only java must be installed on the pc to be able to work.