Use depinst.py to install dependencies in AppVeyor CI.

appveyor.yml

@@ -75,24 +75,11 @@ install:
   - cd ..
   - git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
   - cd boost-root
-  - git submodule init tools/build
-  - git submodule init tools/boost_install
-  - git submodule init libs/headers
-  - git submodule init libs/assert
-  - git submodule init libs/config
-  - git submodule init libs/core
-  - git submodule init libs/io
-  - git submodule init libs/preprocessor
-  - git submodule init libs/static_assert
-  - git submodule init libs/throw_exception
-  - git submodule init libs/type_traits
-  - git submodule init libs/container_hash
-  - git submodule init libs/integer
-  - git submodule init libs/detail
-  - git submodule update --jobs %GIT_FETCH_JOBS%
-  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\utility\
+  - git submodule update --init tools/boostdep
+  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\utility
+  - python tools/boostdep/depinst/depinst.py %DEPINST_ARG_INCLUDE_EXAMPLES% --git_args "--jobs %GIT_FETCH_JOBS%" utility
   - cmd /c bootstrap
-  - b2 -d0 headers
+  - b2 headers
 
 build: off