devtool: modify: add support for multiple source in SRC_URI

devtool: modify: add support for multiple source in SRC_URI

[YOCTO #15162]

when doing devtool modify, sources are extracted into a devtool
temporary workdir. The main source is moved inside
build/workspace/sources/${BPN}/ and local files are moved inside
build/workspace/sources/${BPN}/oe-local-files. Secondary sources are
currently not handled and are lost.

Here is the output of devtool modify/build on bzip2 recipe:

NOTE: bzip2: compiling from external source tree <...>/build/workspace/sources/bzip2
ERROR: bzip2-1.0.8-r0 do_install_ptest_base: ExecutionError('<...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/temp/run.do_install_ptest_base.3368', 1, None, None)
ERROR: Logfile of failure stored in: <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/temp/log.do_install_ptest_base.3368
Log data follows:
| DEBUG: Executing shell function do_install_ptest_base
| NOTE: make -j 16 DESTDIR=<...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest install-ptest
| sed  -n '/^runtest:/,/^install-ptest:/{/^install-ptest:/!p}' \
|            ../../../../../../workspace/sources/bzip2/Makefile.am      > <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/Makefile
| cp ../../../../../../workspace/sources/bzip2/sample1.ref      <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/
| cp ../../../../../../workspace/sources/bzip2/sample2.ref      <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/
| cp ../../../../../../workspace/sources/bzip2/sample3.ref      <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/
| cp ../../../../../../workspace/sources/bzip2/sample1.bz2      <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/
| cp ../../../../../../workspace/sources/bzip2/sample2.bz2      <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/
| cp ../../../../../../workspace/sources/bzip2/sample3.bz2      <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/
| ln -s /usr/bin/bzip2          <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/bzip2
| cp: cannot stat '<...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/git/commons-compress': No such file or directory
| WARNING: <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/temp/run.do_install_ptest_base.3368:189 exit 1 from 'cp -r <...>/build/tmp/work/core2-64-poky-linux/bzip2/
1.0.8/git/commons-compress <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/image/usr/lib/bzip2/ptest/bzip2-tests/commons-compress'
| WARNING: Backtrace (BB generated script):
|       #1: do_install_ptest, <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/temp/run.do_install_ptest_base.3368, line 189
|       #2: do_install_ptest_base, <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/temp/run.do_install_ptest_base.3368, line 158
|       #3: main, <...>/build/tmp/work/core2-64-poky-linux/bzip2/1.0.8/temp/run.do_install_ptest_base.3368, line 226
ERROR: Task (<...>/poky/meta/recipes-extended/bzip2/bzip2_1.0.8.bb:do_install_ptest_base) failed with exit code '1'
NOTE: Tasks Summary: Attempted 776 tasks of which 765 didn't need to be rerun and 1 failed.

Summary: 1 task failed:
  <...>/poky/meta/recipes-extended/bzip2/bzip2_1.0.8.bb:do_install_ptest_base

externalsrc class modify SRC_URI to keep only:
* 'file', 'npmsw' and 'crate' sources
* url with type parameter matching 'kmeta' or 'git-dependency'

So by forcing to add type='git-dependency' on secondary sources, we
ensure that when building the recipe, the secondary sources can be
unpacked into WORKDIR.

This allows recipes containing several sources to be built under a
devtool context, but it has some limitations:
* user would not be able to generate patches for the secondary sources
* type="git-dependency" is added for secondary sources even on non git
  sources, so we may want to rename this parameter

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>