Cccs-yara

What's Changed
* Update README to correspond to current code by cccs-rs in https://github.com/CybercentreCanada/CCCS-Yara/pull/75
* Allow MITRE queries to more than enterprise-attack by cccs-rs in https://github.com/CybercentreCanada/CCCS-Yara/pull/76


**Full Changelog**: https://github.com/CybercentreCanada/CCCS-Yara/compare/v2.2...v2.3

Performance improvements (thanks jxb5151 !)

Changes
- Update settings.json to match current metadata spec
- Add more date formats for parsing
- Try to automatically handle validation errors where possible with hash

**NEW FEATURES**

- Added the -st flag to the yara_validator_cli.py. This causes the cli to return a exit code 49 for warnings.
- Added a validity check with the yara-python library
- Added the -m flag to the yara_validator_cli.py. This flag overrides the check for modules that have not been imported.

**CHANGES**

- Updating the MITRE ATT&CK submodule to the version 8.2
- Added yara-python>=4.0.2 to the requirements.txt file

**BUG FIXES**

- A couple of bug fixes related to the new yara-python validity check, these bugs resulted in rules that should be valid getting marked invalid
- Fixed a bug that caused yara_file_processor.py to exit with an error if a string was passed instead of a Path object.
- Fixed a bug that would cause lines with only space or tab characters to double on each pass with the -i flag.

**NEW FEATURES**

- Automatic generation of mitre_att software ids for malware or tool names found in the MITRE ATT&CK database

**CHANGES**

- Updating the MITRE ATT&CK submodule to the latest released version

**BUG FIXES**

- None