Move aprsfi and pskreporter modules from trx-server into a new
standalone trx-reporting library crate. Config types (AprsFiConfig,
PskReporterConfig) move to trx-reporting and are re-exported from
trx-server::config for backwards compatibility.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
