fix: edate short form

feat: more functionality for brv/edate commands

feat: enable edate/brv dedicated modes

improve: formatting is consistent

feat: determine program name

feat: parsing of simple date times

improve: better printing of time ranges for edate, brv

refactor: comments

fix: epochs prior to BRV start epoch are rejected

improve: print time from epochrep instead of u64

refactor: clippy suggestions

improve: more robust handling and testing for edate conversion

feat: edate conversion

improve: convert to using anyhow

improve: convert to using anyhow

improve: convert to using anyhow

refactor: prepare to print non-current time

build: add default bacon config

Revert "build: add clap dependency"

This reverts commit 8ec17e9c5d3bfd2e9f9e7678674d67ed8f4ddb2d.

build: add clap dependency