Minimizing scripts (and more generally identifying root cause) isn't necessary for regular bug reports. Rather, it can be useful for developers working on *fixing* bugs, and also for fuzzers to avoid spam.
Minor adjustments to `bugpoint.rst`.
Add note to `advanced_bugpoint.rst` about primitives when minimizing scripts.
Drop the parts that are being dropped.
Move the things that are being moved.
Also move the verilog stuff out of README and into the docs.
GettingStarted is less cut and dry, so hold off on that one.
Includes comparison of `abc` v `abc9`. Also creates a new subsection of the
yosys internals for extending yosys (moving the previous extensions.rst into it).
Co-authored-by: Lofty <dan.ravensloft@gmail.com>
