Log Message:
tex-fontools{,-doc}: update to 2019

- use only standard NFSS codes for width and weight in fd files
- create $TEXMFHOME when it doesn't exist (but only if $TEXMFLOCAL
  isn't user-writable, since that's still the default output tree)
- in manual mode, put all generated files into a subdir "autoinst_output/",
  instead of all over the current dir
- add 'auto' value to the -inferiors option; autoinst will use
  whatever inferior characters the font contains
- more relevant logfiles
- better mapping of NFSS codes to actual fonts
- new command-line options to fine-tune that mapping even further
- handle fonts who put small caps into separate families
- improved handling of Titling fonts
- don't add f-ligatures to typewriter fonts

Changes in ot2kpx:
- kerning data can now also be output as a Luatex custom font feature, for
  use with \directlua.