GUI: Fix for potential bad cursor palette access in warning case.

Previously, if the colorsFound exceeded the maximum number of
cursor colors, a bad access to the cursor palette buffer could be
performed before the warning was emitted. This reordering avoids
that.
GUI: Use Common::String for console history, to ensure buffer safety.

Previously, if the user enters a command that is more than 256
characters, it will overflow the history buffer.

By using a Common::String, this is not possible.
AVALANCHE: Fix bug when Tuck tries to grab Avvy
SDL: Fix bug where config file path could exceed maximum path length.

The fix is the change in the MAXPATHLEN check, but have also migrated
this to Common::String to make the fix easier.

Thanks to klusark for pointing out this problem.
FULLPIPE: MovGraph2::buildMovInfo1MessageQueue() implementation
TSAGE: Bugfixing and minor renaming for R2R Maglev scene
TSAGE: Full height bugfix for R2R balloon landing scene
TSAGE: Fix for Quinn's visage in R2R forest campfire sequence
WINTERMUTE: Add bold-font support for FreeSans.ttf (and only FreeSans for now).

This is mostly a quick fix to solve the rather common case of wanting
to use bold Arial. This will not handle the user adding the actual Arial.ttf
file to the folder yet, but atleast it solves the common case of having
to fallback to FreeSans.
TSAGE: R2R - Add hardcoded logic to handle Seeker failing to open door in scene 1800. This fixes a bug in the original  game.
FULLPIPE: MovGraph2::buildMovInfo1MessageQueue() implementation. Almost there
SCI: fixing warning about missing braces
SCI: workaround for sq4 hintbook script bug (#6447)
FULLPIPE: MovGraph2::buildMovInfo1MessageQueue(), more types
JANITORIAL: Fix engine ordering
TSAGE: R2R fix for Quinn moving from output to ARM ship
TSAGE: Cleanup and correct entrance/exits for R2R balloon launch
OPENGL: Fix >1Bpp mouse cursors which do not require format conversion.
TSAGE: R2R - Add comments related to flag 52, 53 and 54 in scene 1100
SCI: added script patch to fix sq5 toolbox bug

fixes bug #6457