Hammer Updates: Yosys/OpenROAD/Magic/Netgen, VCS Parallelism, Conformal LEC, ASAP7 SRAM Fixes

[harrisonliew]

Related PRs / Issues:

• Sky130 now has a fully open-source flow with Yosys syn, OpenROAD par, Magic drc, Netgen lvs (DRC w/ Magic, LVS w/ netgen hammer#657, Yosys + Openroad Plugins hammer#648)
• Implemented VCS fine-grained parallelism (How to enable FGP (Fine Grained Parallelism) in VCS simulation #1081 -> VCS Parallelism, Debug hammer-synopsys-plugins#23)
• Added Conformal LEC and support in Cadence Voltus for FSDB (Support FSDB & SHM Waveforms hammer-cadence-plugins#72, ucb-bar/hammer-cadence-plugins/Confirm cmd line mixin additions #75)
• Various fixes to ASAP7 dummy SRAM models causing gate-level sims to fail (ASAP7 tutorial: make buildfile CONFIG=TinyRocketConfig hammer#643 -> Fix ASAP7 SRAMs hammer#645, How to change clock_period in sim_input.yml hammer#650 -> No BYTEMASK for SRAM1RW256x64/128, Change SITE in LEFs hammer#653)
• Added type checking for Hammer IR (add type-checking to configuration files hammer#655, Integrate type checking into tool hammer#660)
• Cadence plugins are now fully public (Cadence plugins now public hammer#652)

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 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?