Can this package be used with TLS?

Hi,
I'm using fluent-logger with a fluentd instance on a remote host and would like to secure the data transfer using TLS.

On the fluentd side, I follow the instructions set [here](https://docs.fluentd.org/v1.0/articles/in_forward#how-to-enable-tls-encryption).

IIUC, there's no support for TLS/SSL on this package yet, and in order to get that, we need to wrap the socket when needed (e.g., given a parameter in the sender's constructor) as described [here](https://docs.python.org/3/library/ssl.html#ssl.SSLContext.wrap_socket).

Please tell me if I'm getting something wrong here, and if not, may I submit a pull request with this functionality?

Start at the sender constructor and the socket-creation path, using Python's SSLContext.wrap_socket documentation and the linked Fluentd TLS configuration as context. Determine how TLS should be enabled and configured without changing existing connections. Done means the package can securely connect to a remote TLS-enabled Fluentd instance, with coverage for the new behavior.

Scritto dal modello di indicizzazione a partire dal testo della issue.