v0.6.4 Dummy configs, area improvements, and bug fixes

New features:

• Add support for new "dummy configs" which give cycle-accurate performance results, but which don't guarantee functional correctness of matmul/conv operations
• Optimize area for reservation stations by splitting unified reservation station into separate stations for each instruction type

Bug fixes:

• Fix incorrect assertions from firing when building some non-systolic configs
• Fix unpredictable infinite stall caused by OS interrupts
• Fix build scripts when building simulators that can generate waveforms