Improve recipetool metadata extraction

Improve the ability for recipetool create (or devtool add, which uses the former) to extract dependencies from source trees, as well as a couple of other related fixes.

The following changes since commit a42229df424552955c0ac62da1063461f97f5938:

openssh: CVE-2016-1907 (2016-01-17 11:32:21 +0000)

are available in the git repository at:

git://git.openembedded.org/openembedded-core-contrib paule/recipetool-fixes
http://cgit.openembedded.org/cgit.cgi/openembedded-core-contrib/log/?h=paule/recipetool-fixes

Paul Eggleton (10):
recipetool: create: improve extraction of pkg-config / lib deps
recipetool: create: pick up boost macros in configure.ac
recipetool: create: detect flex/bison dependency
recipetool: create: support additional autoconf macros from autoconf-archive
recipetool: create: fix overzealous mapping of git URLs
recipetool: create: move dependency mapping code to RecipeHandler
recipetool: create: force GL libraries to virtual/*
recipetool: create: add basic support for extracting dependencies from cmake
recipetool: create: add a couple more license checksums
oe-selftest: devtool: fix test_devtool_add_library if python was built first

 meta/lib/oeqa/selftest/devtool.py         |  12 +-
 meta/lib/oeqa/selftest/recipetool.py      |  21 +-
 scripts/lib/recipetool/create.py          | 149 ++++++++++++-
 scripts/lib/recipetool/create_buildsys.py | 340 +++++++++++++++++++++++-------
 4 files changed, 432 insertions(+), 90 deletions(-)

2.5.0