expat: Added ptest

expat: Added ptest

For ptest support of expat package:

 - expat_2.2.9.bb recipe was switched on cmake-based building system to
avoid cahnges in autotools build system which considered in upstream as
potentially deprecated (https://github.com/libexpat/libexpat/issues/330).

 - cmake-native_3.17.3.bb recipe was forced to use bundled version of
expat from CMake source tree. Therefore expat-native package has been removed
from DEPENDS variable for cmake-native recipe. Without
these changes, next dependency loop appears:

Dependency loop #1 found:
  Task /home/opopovych/repos/poky/meta/recipes-devtools/cmake/cmake-native_3.17.3.bb:do_compile (dependent Tasks ['cmake-native_3.17.3.bb:do_configure'])
  Task /home/opopovych/repos/poky/meta/recipes-devtools/cmake/cmake-native_3.17.3.bb:do_install (dependent Tasks ['cmake-native_3.17.3.bb:do_compile'])
  Task /home/opopovych/repos/poky/meta/recipes-devtools/cmake/cmake-native_3.17.3.bb:do_populate_sysroot (dependent Tasks ['cmake-native_3.17.3.bb:do_install'])
  Task virtual:native:/home/opopovych/repos/poky/meta/recipes-core/expat/expat_2.2.9.bb:do_prepare_recipe_sysroot (dependent Tasks ['cmake-native_3.17.3.bb:do_populate_sysroot', 'ninja_1.10.0.bb:do_populate_sysroot', 'expat_2.2.9.bb:do_fetch'])
  Task virtual:native:/home/opopovych/repos/poky/meta/recipes-core/expat/expat_2.2.9.bb:do_configure (dependent Tasks ['expat_2.2.9.bb:do_patch', 'expat_2.2.9.bb:do_prepare_recipe_sysroot', 'expat_2.2.9.bb:do_generate_toolchain_file', 'expat_2.2.9.bb:do_deploy_source_date_epoch'])
  Task virtual:native:/home/opopovych/repos/poky/meta/recipes-core/expat/expat_2.2.9.bb:do_compile (dependent Tasks ['expat_2.2.9.bb:do_configure'])
  Task virtual:native:/home/opopovych/repos/poky/meta/recipes-core/expat/expat_2.2.9.bb:do_install (dependent Tasks ['expat_2.2.9.bb:do_compile'])
  Task virtual:native:/home/opopovych/repos/poky/meta/recipes-core/expat/expat_2.2.9.bb:do_populate_sysroot (dependent Tasks ['expat_2.2.9.bb:do_install'])
  Task /home/opopovych/repos/poky/meta/recipes-devtools/cmake/cmake-native_3.17.3.bb:do_prepare_recipe_sysroot (dependent Tasks ['expat_2.2.9.bb:do_populate_sysroot', 'xz_5.2.5.bb:do_populate_sysroot', 'bzip2_1.0.8.bb:do_populate_sysroot', 'ncurses_6.2.bb:do_populate_sysroot', 'zlib_1.2.11.bb:do_populate_sysroot', 'cmake-native_3.17.3.bb:do_fetch', 'curl_7.71.1.bb:do_populate_sysroot'])
  Task /home/opopovych/repos/poky/meta/recipes-devtools/cmake/cmake-native_3.17.3.bb:do_configure (dependent Tasks ['cmake-native_3.17.3.bb:do_deploy_source_date_epoch', 'cmake-native_3.17.3.bb:do_patch', 'cmake-native_3.17.3.bb:do_prepare_recipe_sysroot'])

 - run-ptest script that initalizes testing, copies testing
executables' output to log file and measures execution time of each testing
executable was added.

 - patch that implements output of each testcase result in testing exectutable
was added.

Signed-off-by: Oleksandr Popovych <oleksandr.s.popovych@globallogic.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>