* WIP: Convert Rule to a dataclass
* Fix make release
* Lint fixes
* Remove dead code
* Fix lint and tests
* Use Python 3.8 in GitHub actions
* Update README to 3.8+
* Add Python 3.8 assertion
* Fix is_dirty property
* Remove incorrect pop from contents
* Add mixin with from_dict() and to_dict() methods
* Bypass validation for deprecated rules
* Fix rule_prompt
* Fix dict_hash usage
* Fix rule_event_search
* Switch to definitions.Date
* Fix toml-lint command, ignoring 'unneeded defaults'
* Moved severity Literal to definitions.Severity
* Remove BaseMarshmallowDataclass
* Fix lint and tests
* Add maturity to metadata for rule prompt loop
* Fix typo in devtools
* Use rule loader to load single rule in toml-lint
* Add Schema hint to __schema method
* Add MITREAttackURL definition
* Fix is_dirty to compare sha<-->sha
* Normalize the autoformatted rule output for API and toml-lint
* Make the package hash match
* Make the rule object mutable but not rule contents
* Restore the rules
* Add commands to generate index rules files or index them directly to elasticsearch
* files generated at package creation
* add readme explaining these index files
* add load_gh_pr_rules function
* add dev package-stats command
* add dev search-rule-prs command, which extends the same functionality in rule-search to rules in PR
* [Rule Tuning] Add empty arrays in place of tactic only threat mappings
* dynamically insert empty technique array in payload
* use replace_id as function parameter
* Restructure commands under more specific click groups
* standardize CLI error handling
* add global debug options
* move es and kibana clients into their click groups
* move commands and groups to dedicated files
* distinguish variable names for better env/config parsing