Adding support for MMTk (non-moving immix)

[udesou]

This PR adds the possibility of building/running Julia using MMTk, running non-moving immix.
The binding code (Rust) associated with it is in https://github.com/mmtk/mmtk-julia/tree/upstream-ready/immix. Instructions on how to build/run Julia with MMTk are described in the README file inside the binding repo.

[d-netto]

First review pass.

Will follow-up with more comments soon.

[oscardssmith]

yes, and it also needs the back ticks
@nanosoldier runtests(["EarlyStopping", "BPGates", "IMFData", "NCEI", "OptimizationPRIMA", "JUDI", "TaylorIntegration", "KolmogorovArnold", "DynamicalSystemsBase", "DiffEqDevTools", "MicroCanonicalHMC", "CellMLToolkit", "FlightSims", "SpiDy", "QuantumAnnealing", "Modia", "MRIgeneralizedBloch", "SideKicks"])

[nanosoldier]

The package evaluation job you requested has completed - no new issues were detected.
The full report is available.

[udesou]

It seems like PkgEval ran successfully with the stock GC. Given that @d-netto is on holidays, I’m not sure he’ll have time to look into this. @gbaraldi if you’re happy with the makefile changes, this should be ready to merge, I believe.

[oscardssmith]

PkgEval came back fully clean.

[nanosoldier]

The package evaluation job you requested has completed - no new issues were detected.
The full report is available.

[gbaraldi]

LGTM. We should do the MMTK build with Yggy now and open a PR to run a pkgeval on it.

[udesou]

@oscardssmith I've made the changes to the binding, adding the license files and updated the version here. The PR should be ready to merge 👍