Moved some functions with llinfos into .cpp files
Linker optimizations, all

Cuts size of object files dramatically, often 100KB apiece.

EXT-699 - Toasts should display maximum 6 lines of text before ellipses are applied
EXT-2453 - TextBox displays an extra line of text

EXT-1995 - [BSI] Get rid of the *blop* sound when a textbox contains more text than displayable

floaters can now overlap sidetray
fixed text selection background color to be inverse of text fg color
EXT-2713 	Script editor automatically scrolls to the top of script text when text is longer than the window.

reviewed by James

Trivial, not reviewed.

Cuts number of includes of llnotifications.h from 300+ to 40.

Fixed many more includes

Fix for screen buffers not getting reallocated appropriately all the time (the assumption that buffers should only be reallocated if the resolution changed was wrong).