[Ohrrpgce] SVN: james/10323 Add mouse support to the Shop Buy/Hire screen.

[subversion at HamsterRepublic.com]

james
2018-04-06 13:19:10 -0700 (Fri, 06 Apr 2018)
218
Add mouse support to the Shop Buy/Hire screen.

Also added MenuState.select_by_mouse_release which defaults to NO but
can be set to YES for menus where you need to be able to do focusing
and picking in separate clicks.
---
U   wip/docs/plotdict.xml
U   wip/docs/plotdictionary.html
U   wip/menus.bas
U   wip/menustuf.rbas
U   wip/plotscr.hsd
U   wip/sliceedit.bas
U   wip/slices.bas
U   wip/slices.bi
U   wip/udts.bi