* Allow both -output and -output-style parameters (output-style applies to output now) + add csv output style
* Implement the ```-level``` parameter
* Add support for R4B validation
* fix bug in deep profiles (profiles that don't start at the root)
## Other code changes
* Regenerate R5 code for 5.0.0-snapshot1 & many consequential changes
* Add version support for R4B and R5 (R4B code generation still to be done)
* Move loaders to own packages
* Move inner loader classes up one level
* Use lombok annotaions for BaseLoaderX classes
* Move ADLImporter
* Use lombok for ADLImporter inner classes
* Move inner ADLImporter classes up one level
* Move misc classes with inner classes to their own packages
* Encapsulate and add lombok to misc internal classes
* Move inner misc classes up one level
* Clean up explicit type arguments
* Revert back to master validator_test_case_version in pom.xml
* Update RELEASE_NOTES.md
Co-authored-by: David Otasek <david.otasek@Davids-MacBook-Pro.local>
* add explicit control over the User-Agent header, and make sure headers flow through properly to all calls
* #328 - wrong processing of markdown URLs
* test fixes for URL handling
* fix tests
* improved validation of UUIDs
* fix test case dependency
* Add Dicom Package builder
* NPE fixes
* Smart Health Cards support in validator
* Fix bug generating spreadsheets due to sheet name length limitations
* Implement descendent-of filter
* more NPE fixes
* add Element.removeChild
* fix issue generation snapshot and content reference, and work around old erroneous binding description in R4
* improve SHC validation error
* fix for NPE generating ConceptMap spreadsheet
* fix crash in IG publisher rendering illegal content
* Improve slicing error messages
* more improving error message resolving slicing
* add missing code + track prohibited / required elements (improve rendering of IGs)
* fix for broken links in R4B IGs
* fix bug related to logger in FHIRToolingClient
* fix bug related to logger in context
* enable detection of whether tx server knows about value set and better track returned errors from tx server
* make likely source URL visible outside ProfileUtilities
* fix renderers - don't make nonvalid URLs into html links + fix NPE +
* fix bug with sheetnames generating spreadsheets
* supper branches in current version of packages
* report slicing information automatically where slicing is based on profile + fix shc support + support codesystem-properties-mode + fix value set validation on profiles + fix wrong entry point on vaildating contained resources with profiles
* fix misleading validation message + add -ips parameter for validator
* hint not warning when it's an example questionnaire
* wip
* adding tests for headers in client
* fix
* r4 updated httpclient
* updating http client code for r4 and dstu3
* dunno why this didn't get added before