[Documentation] Added more config documentation for gunbag and respawn waves.

[Bubbus]

Resolves #139.

Pull Request Description

When merged this pull request will:

• Add more config documentation for gunbag and respawn waves.

Release Notes

Added more config documentation for gunbag and respawn waves.

IMPORTANT

• [x] Testing has been completed as neccessary, depending on the nature & impact of the changes.
• [x] The Release Notes section below must be filled out appropriately to explain the changes made in this PR. This section will be used in Framework Changelogs.
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• [x] Title of this PR uses our standard template [Descriptor] - Add|Fix|Improve|Change|Make|Remove {changes}.

[Bubbus]