[FR] Configuration param to avoid IP bans from localhost

[smk762]

Describe the bug
Currently requests from localhost which have an incorrect rpc_pass will earn an IP ban. This is most often due to an older / competing app, script or docker container sending a request to 127.0.0.1:7783, with the effect of rendering the newer or competing instance (or both) unresponsive, and logs full of Your ip is banned.

Proposed solution
A new config param for MM2.json with the effect of not counting failed requests from localhost (or rpc_ip) towards an IP ban. In the event of a local request failing to authenticate, the rpc should respond withincorrect credentials from localhost or rpc_ip without it causing a denial of service for aithenticated requests from the same defined source.