When using 'opentf-ctl generate report', there is no way to specify a specific local filename

Current situation

When generating insights, we can specify a directory in which the generated insight(s) will be saved, by using the --save-to command line option.

But there is no way to specify a filename, the insight's name will always be used.

Desired outcome

A way to override this name. For example --as:

opentf-ctl generate report 123 using foo.yaml --name yada --as somethingsomething

This option is not compatible with patterns in --name (use --save-to in this case, to put the generated reports in a directory, without changing their names).