The key of Android Resources (xml) use underline to separate

[xiehongxin]

Is your feature request related to a problem? Please describe. In the latest version，the key of Android Resources (xml) use "." to separate，although it can be used, it does not meet the official specifications

Describe the solution you'd like I hope to have a option to select the separator，thanks！

Describe alternatives you've considered

Additional context

@anthonynsimon

[anthonynsimon]

We are planning on adding import/export options which would include custom separators. If anyone would be interested in taking up this feature it would be awesome!