Proxyman support for conda

Proxyman support for the package manager [conda](https://conda.io/en/latest/) would be great. The proxy is set in `~/.condarc`. The .condarc structure is:
```
ssl_verify: true
channels:
- defaults
proxy_servers:
http: http://172.31.2.4:8080
https: https://172.31.2.4:8080
```

More info [here](https://docs.conda.io/projects/conda/en/latest/user-guide/configuration/use-condarc.html#configure-conda-for-use-behind-a-proxy-server-proxy-servers)