Add CI `windows2022` jobs for performance analysis

[nickbianco]

Brief summary of changes

Added updates to continuous_integration.yml to support running performance analysis jobs using either Mac or Windows runners. Since the self-hosted runner for Mac won't be ready for a while, I've set up a self-hosted runner for Windows on opensim-perf which these changes will let us access.

With these changes:

• a perf analysis using the self-hosted Windows runner can be accessed by adding [perf-win] in the PR body or title.
• a perf analysis using the (for now) GitHub hosted Mac runner can be accessed by adding [perf-mac] in the PR body or title.

For now, only one of the two results will be posted below (whatever comes last). Posting both will come in a future PR when Mac perf analysis has a self-hosted runner.

Testing I've completed

The usual GitHub Actions seven stages of grief testing workflow.

Looking for feedback on...

CHANGELOG.md (choose one)

• no need to update because...this is still somewhere in between finished and experimental. I will document the changes the change log and CONTRIBUTING.md when everything is finalized.

Performance analysis

Platform: Mac, GitHub Actions runner

Test Name	lhs [secs]	stderr [secs]	rhs [secs]	stderr [secs]	Speedup
Arm26	0.61	0.48	0.60	0.48	1.01
ToyDropLanding	20.17	11.33	18.16	2.42	1.11
passive_dynamic_noanalysis	3.90	0.01	4.53	0.02	0.86
ToyDropLanding_function_based_paths	21.38	4.15	20.65	0.75	1.04
Gait2354	0.51	0.01	0.49	0.00	1.05
passive_dynamic	5.67	0.03	5.59	0.01	1.01
ToyDropLanding_nomuscles	0.71	0.00	0.70	0.00	1.01
MocoSlidingMass	1.91	0.00	1.92	0.02	0.99
RajagopalModel	12.04	1.07	11.72	0.04	1.03

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This change is 

[nickbianco]

@carmichaelong this is ready for review now.