## Validator Changes
* Clean up the -extension parameter - make implementation conistent with documentation
* Stop auto-converting parameters to strings for string functions e.g. .length() in the FHIRPath engine
* Add parameter -implicit-fhirpath-string-conversions for old FHIRPath string conversion functionality
## Other code changes
* Fix NPE counting descendents when validating
* Fix bug processing invalid HTTP response
***NO_CI***
* Add -extension parameter to validator cli help
* Make extension param match confluence docs
Semantically, a single URL is associated with each instance of this param. Singular -extension is shorter and correct-er.
* Replace * wildcard with `any`
Co-authored-by: dotasek <david.otasek@smilecdr.com>
## Validator Changes
* Significant improvement in performance of validation (10-100 fold for simple resources)
* Add output tracker to trask progress of validation (Validate %R against %P..........20..........40..........60..........80.........|)
* Alter per-1 to handle different precision on start/end
* Add support for a -jurisdiction parameter, preparing for jurisdictionally specific constraints in profiles
* Fix bug in snapshot generation where type slices on a mandatory element were all marked as mandatory
* Add warnings when potential matches are found when performing reference resolution in bundles
## Other code changes
* extend FHIRPath to support lowBoundary(), highBoundary() and precision()
* Fix for inefficiency in StructureMap engine
* Update version of PubPack used by the IGPublisher
* Handle scope on TestScript R4 <-> r5 conversion
* Fix bug converting extension context = Resource (R4 <-> R5 conversion)
* Update VSAC importer for changes to VSAC FHIR authorization
* Fix broken links in profile comparison due to cross version issues
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## Validator Changes
* Trim unknown resource types when pre-adopting cross version extensions with type=Reference
## Other code changes
* Package Client: Get Packages by Dependency
* Snapshot Generator (R4b/R5): Fix generation of complex extension snapshot + improve rendering
* New tests for StructureMap execution
***NO_CI***