insane.bbclass: add QA check: file-rdeps

insane.bbclass: add QA check: file-rdeps

The ipk or deb can't depend on file such as "/bin/bash" or
"/usr/bin/perl", so it knows nothing about the pkg depends bash or perl,
thus there would be dependencies problems when we run "apt-get
install/remove <pkg>" on the target, this check can help us find the
issues and then fix them manually.

* Benefits:
  - Help to fix file rdepends issues for ipk and deb
  - Help to fix abnormal rdepends.
  - Help to check whether the rdepends is OK or not after build each
    recipe (don't have to install to the image), for example, a recipe may
    generate 10 binary packages, only a part of them will be installed to
    the image by default, we can know whether the rdepends are OK or
    not for the ones which are installed, but can't know the ones which
    are not installed, this patch can help check all the 10 binary
    packages' rdepends.

* Basic designs:
  - Get all the RDEPENDS on the chain.

  - Get the pkg's FILERPROVIDES from oe.packagedata.read_subpkgdata()
    and save to set filerdepends.

  - Get each RPDEPENDS' FILERPROVIDES, RPROVIDES and FILERPROVIDESFLIST,
    and save to set rdep_rprovides.

  - Do the set "filerdepends -= rdep_rprovides" and QA issue if
    filerdepends is not null.

[YOCTO #1662]

(From OE-Core rev: cd5e0f01cdb4e7c759c01cf3f87952a20253737c)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>