Deprecation of some API breaks mining on remote nodes

[slavikus]

Describe the bug
The recent PR breaks the ability to mine on a node that runs on a remote machine.

ERROR grin_servers::mining::mine_block - Failed to get coinbase from http:/x.x.x.x:3415. Is the wallet listening? Request error: Cannot make request: error trying to connect: tcp connect error: Connection refused (os error 111) ERROR grin_servers::mining::mine_block - Error building new block: Can't connect to wallet listener at "http://x.x.x.x:3415"; will retry

[bladedoyle]

Known issue.
@jaspervdm Please comment - what is the plan?

[bladedoyle]

@slavikus As a workaround you can edit the source code and fix with something like this:
sed -i 's/127.0.0.1:{}/0.0.0.0:{}/' config/src/types.rs

[jaspervdm]

We will likely have to introduce a new api type that solely exposes an endpoint to build a coinbase output. In the meanwhile it is recommended to use a reverse proxy in front of the wallet.

[bladedoyle]

What happened is:
The wallets entire foreign_api was moved to tor listener and hardcoded to localhost

What should have happened:
A new receive_api added to the wallet, hardcoded to listen on localhost and used only by tor. The receive_tx & finalize_tx methods should have been moved to this new api, and no longer available on the foreign_api.
The foreign_api should have been left alone except for removing receive endpoints

edit:
some endpoints - like check_version would be available through both receive_api and foreign_api
It may be good to rename "foreign_api" to something like "local_api" or something since it wont necessarily be exposed to the public internet