* Added slice bounds testing for slice expressions.
* Added checking slice index.
* Added test for reassigning slice.
* Store capacities on reslicing.
* Scope change clears map. Func name used to track slices.
* Map CallExpr to check bounds when passing to functions.
* Fixed linter errors.
* Updated rulelist with CWE mapping.
* Added comment for NewSliceBoundCheck.
* Addressed nil cap runtime error.
* Replaced usage of nil in call arg map with dummy callexprs.
* Updated comments, wrapped error return, addressed other review concerns.
