Billy Laws 62db21fb78 Rework GPFIFO method distribution and macros to support multiple engines
Fermi2D supports macros in addition to Maxwell3D, these both share code memory. To support this we rework the macro interpreter to support passing in a target engine and abstract the communications out into an interface that can be implemented by applicable engines.

```
GPFIFO <-> MME <-> Maxwell3D
    ^        ^---> Fermi2D
    X------------> I2M
    X------------> MaxwellComputeB
    X--Flush-----> MaxwellDMA
```
2022-04-14 14:14:52 +05:30
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2019-10-18 16:22:38 +05:30