[SCM-848] Git-scm:tag - Allow config option to specify annotated or lightweight tagging

**[Daniel Felipe](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=dafelipe130)** opened **[SCM-848](https://issues.apache.org/jira/browse/SCM-848?redirect=false)** and commented

Could we have an option for the `scm:tag` goal in git to either apply a tag as an annotated or a lightweight one?

This is to serve cases where we'd want to leverage `git describe` to allow us to pull specific types of release tags and calculate versions out of the describe output.

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**Affects:** 1.9.5

Start at the Git implementation of the scm:tag goal and trace how its tag configuration is handled. Check any existing tests for Git tagging, then define coverage for both annotated and lightweight tags; done means the goal exposes an option that produces either tag type and supports the git describe use case.

Written by the indexing model from the issue text.