dmr-client export should allow to configure the expanded form

[rido-min]

When running export I'd like to configure if the dependencies should be output (to file or stdout) as:

• 1 file per interface (name the files as --output param + a number)
• 1 file with an array of all interfaces

dmr-client export --dtmi "dtmi:com:a;1" -o a.json --expanded-output false

a.json
deviceinfo.json

dmr-client export --dtmi "dtmi:com:a;1" -o a.json --expanded-output true

a.json