* Update grammar
* Update parser and AST generator
* Update semantic analysis
* Executor implementation
- Move Executor stack modification logic to BFunctionRef
- Handle user function calls
- Handle expression function calls
* Tests
* Update existing listfile snapshots
- Adds variadic boolean to instruction stack
- Changes instruction counts and offsets
* Fix test issue
* Better implementation of calling user functions
* Add var-args-captures test
* Refactor continuation handling + handle variadic args
- Move stack modifications from make/withContinuation into the executor's handling of the continuation
- Only trim args in continuation call if function is not variadic
* Add var-args-continuation test (via array.filter)
* update escriptguide + formatting, docs
* Fix CI annotations
- '=': conversion from 'size_t' to 'unsigned int', possible loss of data
- declaration of 'continuation' hides previous local declaration
* POC of calling user functions from core
* rename to BContinuation
* fix annotation warnings
* fix annotation warnings 2
* some cleanup, comments
* add more params to filter
* add more tests
* fix stack issues, wip determine what to do with printStack helper testing function
* print stack only for debug; increase OTContinuation to 100
* docs
* remove debugging leftovers
