[Experimental simulators] Integrate with QIR runtime

[cgranade]

As of #709, the experimental simulators for open systems and CHP simulation are currently only supported in the C# runtime. These simulators should be made available to QIR applications by completing the following steps:

• Use target packages for decompositions required by the experimental simulations (currently blocked on Python / IQ# support)
• Write a C++ interface between the QIR bridge and the experimental simulator C API.
• Integrate cargo build with cmake build of QIR runtime.
• Integrate QIR qubit manager (Added first version of Qubit manager to QIR #696).
• Remove C API declarations from C++ headers and rely on cbindgen to automatically generate headers from c_api.rs.
• Refactor C++ class for experimental simulators following C++ best practices (split declaration into .hpp, sort declarations by visibility modifiers.
• Expand integration test coverage at QIR interoperability surface.