Changes:
* Updated mappings for PaloAlto readme [890](https://github.com/opencybersecurityalliance/stix-shifter/pull/890)
* Added Palo Alto Cortext XDR UDI Connector [858](https://github.com/opencybersecurityalliance/stix-shifter/pull/858)
* package utils/normalization [882](https://github.com/opencybersecurityalliance/stix-shifter/pull/882)
* add sample transformer to template modules [870](https://github.com/opencybersecurityalliance/stix-shifter/pull/870)
* Added IN operator for Vision One UDI connector [861](https://github.com/opencybersecurityalliance/stix-shifter/pull/861)
* Update arcsight custom attributes [865](https://github.com/opencybersecurityalliance/stix-shifter/pull/865)
* results metadata support [813](https://github.com/opencybersecurityalliance/stix-shifter/pull/813)
* Template projects rename [854](https://github.com/opencybersecurityalliance/stix-shifter/pull/854)
* doc update for operators and custom transformers [846](https://github.com/opencybersecurityalliance/stix-shifter/pull/846)
* Adding BaseNormalization Class [820](https://github.com/opencybersecurityalliance/stix-shifter/pull/820)
* Add IN operator for sumologic connector [845](https://github.com/opencybersecurityalliance/stix-shifter/pull/845)
* Adding IN operator support to CB connector [835](https://github.com/opencybersecurityalliance/stix-shifter/pull/835)
* Stix validator update [838](https://github.com/opencybersecurityalliance/stix-shifter/pull/838)
* CrowdStrike: Adding IN operator support [842](https://github.com/opencybersecurityalliance/stix-shifter/pull/842)
* Adding changelog [833](https://github.com/opencybersecurityalliance/stix-shifter/pull/833)
* New UDI connector module for IBM Security Verify [802](https://github.com/opencybersecurityalliance/stix-shifter/pull/802)
* Adding connector name in the error responses [824](https://github.com/opencybersecurityalliance/stix-shifter/pull/824)
Fixes:
* use simple setup for mysql endpoints [885](https://github.com/opencybersecurityalliance/stix-shifter/pull/885)
* Mysql tablename fix [868](https://github.com/opencybersecurityalliance/stix-shifter/pull/868)
* RestApiClient in stix-shifter using https mount call [864](https://github.com/opencybersecurityalliance/stix-shifter/pull/864)
* Fixed StixObjectId conversion to string [863](https://github.com/opencybersecurityalliance/stix-shifter/pull/863)
* Fixed stix-validator 3.0.2 usage in translator [851](https://github.com/opencybersecurityalliance/stix-shifter/pull/851)
* remove process_user field mapping from windows-registry-key stix object [850](https://github.com/opencybersecurityalliance/stix-shifter/pull/850)
* Secret server 1.9 [836](https://github.com/opencybersecurityalliance/stix-shifter/pull/836)
* Fixed calculating and updating deterministic IDs and the… [826](https://github.com/opencybersecurityalliance/stix-shifter/pull/826)
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