[Ohrrpgce] SVN: teeemcee/10253 Add "read/write preference bitset" commands and convert all existing pre

[subversion at HamsterRepublic.com]

teeemcee
2018-03-29 21:13:47 -0700 (Thu, 29 Mar 2018)
209
Add "read/write preference bitset" commands and convert all existing pref bit commands to be wrappers

I've encountered quite a few times now that someone wants to read/write a
bit for which there's no command
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U   wip/docs/plotdict.xml
U   wip/docs/plotdictionary.html
U   wip/plotscr.hsd
U   wip/whatsnew.txt