msvs: Fix rule dependencies for VS2013

msvs: Fix rule dependencies for VS2013

This commit does two things to fix rules for VS2013:

* Don't exclude rule 'input' files (i.e. the files that will be used as
  'AdditionalDependencies' in the msbuild rule definition).
* Use a 'CustomBuild' element for 'AdditionalDependencies' files, instead of
  using 'None'.  This is similar to how the primary input of actions is added
  in '_AddMSBuildAction'.

Also, re-enable the test/rules-rebuild/gyptest-default.py test for VS2013.

BUG=gyp:465
R=scottmg@chromium.org

Committed: https://code.google.com/p/gyp/source/detail?r=1997

[Shezan Baig (Bloomberg), 2014-11-04 20:11:49]

sbaig1@bloomberg.net changed reviewers:
+ scottmg@chromium.org

[Shezan Baig (Bloomberg), 2014-11-04 20:11:49]

I ran the test on both VS2010 and VS2013 locally, and this change seems to fix
it.

Right now, I just removed ExcludedFromBuild for msbuild projects.  I think it
can be done for non-msbuild projects as well, but since there's no test
coverage, I'd rather not change the behavior there.

Basically, all this change does is collect the AdditionalDependencies of all the
rules in to a 'rule_dependencies' set, and use that set to determine whether the
source file should be 'CustomBuild' or 'None'.

Most of this patch is actually just propagating that set down through all the
layers until it reaches the place where it is actually used.

[Shezan Baig (Bloomberg), 2014-11-04 20:24:41]

The mac failure doesn't seem related to this patch at all

[scottmg, 2014-11-04 21:30:51]

Thanks! LGTM.

[Shezan Baig (Bloomberg), 2014-11-04 22:57:14]

Committed patchset #1 (id:1) manually as 1997 (presubmit successful).