Make all options configurable from config file and CLI

Today, you can configure the daemon via a config file and CLI flags (and also a couple environment variables, but that is not relevant here). Many of the options are configurable via both sources, but some like `Endpoint` are only configurable via the config file. We should add all configurations only available in the config file today to the CLI as well, to give our customers maximum flexibility.

Relevant docs: https://docs.aws.amazon.com/xray/latest/devguide/xray-daemon-configuration.html

Start by comparing the daemon's config-file options with its CLI flags, using the linked AWS X-Ray configuration documentation as a checklist. Identify each option currently limited to the config file, then verify that the CLI exposes the same set and that the documented configuration behavior remains consistent.

Written by the indexing model from the issue text.