Is your feature request related to a problem? Please describe.
The addinvoice CLI command doesn't support all the arguments that are supported by the equivalent API endpoint.
In particular, I need to be able to specify the price_oracle_metadata field when I call addinvoice.
Describe the solution you'd like
Add support for another CLI argument, named price_oracle_metadata which takes an opaque string and forwards it to the AddInvoice endpoint.