Do not print list of individual components

We're only interested in the collated list.
Do not output header information or section titles
Drop useless info columns from output
Tidy up comments and whitespace
Drop item column

We're only intrested in the component references.
Correct typos in components values for two resistors

Formatting only.
Switch back to `csv` module's writerow

We don't need utf-8 and we want it's more intelligent quoting rules.
Update BOM with fixed values from schema

This correctly groups the errant resistors and fixes the quantity values.