[cximage] Fix denial of service via a crafted photo file (CVE-2013-1438)

Embedded CxImage embeds a copy of libDCR, a fork of dcraw.c, which
contains several denial of service vulnerabilities as discovered by
Raphael Geissert. These seem to affect the CxImage-embedded libDCR as
well.

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1438
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Unspecified vulnerability in dcraw 0.8.x through 0.8.9, as used in
libraw, ufraw, shotwell, and other products, allows context-dependent
attackers to cause a denial of service via a crafted photo file that
triggers a (1) divide-by-zero, (2) infinite loop, or (3) NULL pointer
dereference.
----

Port the fix from libRaw [1] to CxImage copy of libDCR. The patch has
been submitted upstream.

[1]
https://github.com/LibRaw/LibRaw/commit/9ae25d8c3a6bfb40c582538193264f74c9b93bc0
DVDVideoCodec: Add static methods to hide / enable / query user settings
VDPAU: Remove AdvancedSettings for mpeg4
VDPAU: Add Expert Settings to let user easily disable certain codecs
VAAPI: Remove Mpeg4 Advanced Setting
VAAPI: Make Codec selection an expert setting (disable mpeg4, vc1 by default)
Settings: Use new Codec Settings function to hide settings for nvidia users
Settings: Add description and examples to the new settings
Language: Add comments to every single lable to help translators
Add DVDVideoCodec.cpp to Visual Studio
XCode: Adjust to new DVDVideoCodec.cpp thx @davilla
[3d] fix stretched gui in sbs/ou mode when using hq scalers