Move FireChip target-specific CI from FireSim to Chipyard

[abejgonzalez]

Now that FireSim is isolated from Chipyard (all target specific bridges, harnesses, etc live in Chipyard), it makes sense to also move the FireSim CI here as well.

This PR does the following:

• Moves FireSim target-specific CI here. This includes (1) running FireSim metasimulations on default designs always (2) running FireSim's bitstream builds (runnable by adding ci:local-fpga-buildbitstream-deploy) (3) running FireSim's FPGA simulation of Linux boot on default designs (runnable by adding ci:fpga-deploy). Default designs means single/multi-core Rocket and single-core LargeBOOM.
  • It's up to a Chipyard dev to make a PR building/testing bitstreams adhoc
• Removes need for code doing FireSim-as-top
• Updates the documentation to point to the new flow.
• Adds a helper typecheck script

Related PRs / Issues:

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• RTL change
• Software change (RISC-V software)
• Build system change
• Other

Contributor Checklist:

• Did you set main as the base branch?
• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• Did you mark the PR with a changelog: label?
• (If applicable) Did you update the conda .conda-lock.yml file if you updated the conda requirements file?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you add a test demonstrating the PR?

• (If applicable) Did you mark the PR as Please Backport?

[jerryz123]

I assume the files that were copied from firesim are fine.