Feature: soundscape editor built into hammer

[ElliotElison]

Which component should be improved?

Hammer

Describe your feature suggestion in more detail

There are several examples of soundscape editors that have been created in the past, such as this one: https://tf2maps.net/threads/resource-gui-soundscape-editor.11967/ Or there is also XBLAH's modding tool, however it is not free. I think hammer should have a built in soundscape editor.