meson: support installation tags

the only thing missing is to tag custom install targets, namely:
 - ICDs (vulkan, glvnd, OpenCL, VA-API, VDPAU)
 - Vulkan layers
 - custom install script for megadrivers
 - drirc file

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24911>

src/vulkan/device-select-layer/meson.build

@@ -53,4 +53,5 @@ vklayer_mesa_device_select = shared_library(
 install_data(
   files('VkLayer_MESA_device_select.json'),
   install_dir : join_paths(get_option('datadir'), 'vulkan', 'implicit_layer.d'),
+  install_tag : 'runtime',
 )