assertables 8.3.0

Assertables: Rust crate of macros `assert…!` for better tests, quality assurance, debug testing, and runtime reliability.
Documentation
# Change summary


## Version 7.x top changes

* Add `assert_in_delta`, `assert_in_epsilon`.

* Add `assert_fn_*` macros with multiple arities.

* Add `cargo release` for optimized tagged releases.


## Version 6.x top changes

* Add `assert_starts_with`, `assert_ends_with`, `assert_contains`, `assert_is_match`.

* Add `debug_assert_*` macros everywhere.

* Add `GPL-3.0` license.