Move internal_compiler code to qcor and handle qalloc inside a quantum kernel (!161) · Merge requests · Mccaskey, Alex / qcor

Created by: tnguyen-ornl

Moved qalloc and xacc_internal_compiler to QCOR (under qrt) and ported those related tests.
Update qubit type and qalloc to support lifetime tracking and custom allocator. QRT will provide this allocator. Syntax handler to inject the runtime allocator (similar to the way parent_kernel is injected). At final submission, the global ancilla qureg is pulled in if necessary (qalloc inside kernel).
Small update to the XASM grammar to allow for inline function calls in the argument list, e.g. kernel(q, qalloc(q.size()), ...) and generate the ANTLR source accordingly.
Update the arithmetic library to use the new feature and to test them.
Make more examples become (compile + execution) test cases (not just compile) to improve test coverage.

Move internal_compiler code to qcor and handle qalloc inside a quantum kernel