+ CustomMessage now uses a normal picture of a definition/object
+ BigIcon is now the small (and only) "Portrait" the player chan choose
+ In future, one could of course make the max size of the BigIcon bigger
A few windows headers are still included, but not the big offenders
rpcndr.h, wingdi.h and winuser.h. Unfortunately, the latter two need to be
included from StdWindow.h, so still wind up in a lot files, which means
some of the #defines in them need to be undone. To avoid doing that in
multiple places, a few more files include StdWindow.h now.
This time with more manual checking and using git blame -M -C, so that
a few cases of copied code get a copyright notice corresponding to
their initial introduction.
Both classes did the same thing at the same time, with the only difference
that C4GUI::Resource was vaguely more associated with GUI stuff. Some
time ago, C4GUI::Resource could be freed during the game, but not anymore.
This saves some lines of code and one redundant class, but shouldn't change
anything besides progress bar being textured a little earlier during
startup.