[feature]: dual proxy set up: support a clearnet proxy and a tor proxy in parallel

[emplexity]

Is your feature request related to a problem? Please describe.
current set up uses the tor proxy configuration parameters in lnd.conf to connect lnd to a clearnet proxy. It works without any issue but does not allow to connect to another proxy to access tor, closing the capability of being hybrid using two proxies, one for clearnet and another one for tor
Describe the solution you'd like
one set up for clearnet proxy in lnd.conf and another one for tor proxy in lnd.conf so that a lnd node can operate with two distinct proxies to access clearnet and tor in parallel and be hybrid behind 2 proxies.
Describe alternatives you've considered
using a solution at os level but complex and it may clash with the lnd tor.set up. Proxies are better handled at app level.

Additional context