Require user to explicitly allow TLS instead of enabling implicit

[ntnn]

Description

Users must enable TLS explicitly by setting ASE_TLS=true or Info.TLSEnable = true. Also defaults the expected TLS servername to be Info.Host.

TLS is also enabled by default when the port is 443, e.g. for TLS proxies.

Related issues

Link any related issues here.

Tests

• [x] make lint
• [x] make test-go / make test-cgo
• [x] make integration-go / make integration-cgo