Just in case as they are said not overloadable. No deprecation because this is during a PR: those procs didn't exist before.
Also update comment due to failed optimization attempt using copyMem() for POD datatypes.
Better bounds checking. Tried to make it and documentation comply with the conflicting style guides.
Added example of usage at the top of the module as well as warnings on usage.
Also fix the back() and internal englishOrdinal() proc from previous commit.
Added {.discardable.} pragma for .pop(), when calling only for it's side effects.
Sprinkled some unlikely() for optimization.
Some new tests reflecting those changes.
Now queues support indexing, front() and back() operations and pairs iteration.
Also modernized some of the code to use newer Nim features.
Added the "add()" alias to "enqueue()", per nim's conventions (also fits better with pop())
