Allow multiple values for softwareType

[Animtim]

Looks like for now softwareType accepts only a single value.
As our application is both standalone/desktop and standalone/mobile, we would need to add both...

Please change softwareType to accept enumerated string or array of strings.

[bfabio]

@Animtim agreed! Would you care to open a PR with the proposal?

[Animtim]

Nice! Though sorry I'm a bit too busy these days to make a PR for it, please do it if you can.