Move contrib/meson to build/meson

diff --git a/contrib/meson/GetZstdLibraryVersion.py b/build/meson/GetZstdLibraryVersion.py
similarity index 100%
rename from contrib/meson/GetZstdLibraryVersion.py
rename to build/meson/GetZstdLibraryVersion.py

diff --git a/contrib/meson/InstallSymlink.py b/build/meson/InstallSymlink.py
similarity index 100%
rename from contrib/meson/InstallSymlink.py
rename to build/meson/InstallSymlink.py

diff --git a/contrib/meson/README.md b/build/meson/README.md
similarity index 100%
rename from contrib/meson/README.md
rename to build/meson/README.md

diff --git a/contrib/meson/contrib/gen_html/meson.build b/build/meson/contrib/gen_html/meson.build
similarity index 100%
rename from contrib/meson/contrib/gen_html/meson.build
rename to build/meson/contrib/gen_html/meson.build

diff --git a/contrib/meson/contrib/meson.build b/build/meson/contrib/meson.build
similarity index 100%
rename from contrib/meson/contrib/meson.build
rename to build/meson/contrib/meson.build

diff --git a/contrib/meson/contrib/pzstd/meson.build b/build/meson/contrib/pzstd/meson.build
similarity index 100%
rename from contrib/meson/contrib/pzstd/meson.build
rename to build/meson/contrib/pzstd/meson.build

diff --git a/contrib/meson/lib/meson.build b/build/meson/lib/meson.build
similarity index 100%
rename from contrib/meson/lib/meson.build
rename to build/meson/lib/meson.build

diff --git a/contrib/meson/meson.build b/build/meson/meson.build
similarity index 100%
rename from contrib/meson/meson.build
rename to build/meson/meson.build

diff --git a/contrib/meson/meson_options.txt b/build/meson/meson_options.txt
similarity index 100%
rename from contrib/meson/meson_options.txt
rename to build/meson/meson_options.txt

diff --git a/contrib/meson/programs/meson.build b/build/meson/programs/meson.build
similarity index 100%
rename from contrib/meson/programs/meson.build
rename to build/meson/programs/meson.build

diff --git a/contrib/meson/tests/meson.build b/build/meson/tests/meson.build
similarity index 100%
rename from contrib/meson/tests/meson.build
rename to build/meson/tests/meson.build