Export a function in database for sharing

[op2786]

A feature for isolating a function in a Binary Ninja database would be useful. This feature would be useful for bug reporting or files that should be stay confidential.

For example, Binary Ninja could generate a separate bndb for the function we want to be isolated and could saves new database with the function name. This way, instead of sharing a binary, we can share an isolated Binary Ninja database.

[plafosse]

I tried searching for this but couldn't find it. I was searching for "export" and "exporting" so I modified the name of the issue.