accounts-service: Add accounts service vendor extension for app filter

Use accounts service’s vendor extension support for storing the app
filter per user, in a way that persists and which access to is
controlled by polkit (so writes can be restricted to administrators).

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://phabricator.endlessm.com/T23858

meson.build

@@ -0,0 +1,30 @@
+project('eos-parental-controls', 'c',
+  version : '0.1.0',
+  meson_version : '>= 0.47.0',
+  license: 'LGPLv2.1+',
+  default_options : [
+    'buildtype=debugoptimized',
+    'warning_level=2',
+    'c_std=gnu11',
+  ]
+)
+
+pkgconfig = import('pkgconfig')
+
+meson_make_symlink = join_paths(meson.source_root(), 'tools', 'meson-make-symlink.sh')
+
+prefix = get_option('prefix')
+datadir = join_paths(prefix, get_option('datadir'))
+
+# FIXME: This isn’t exposed in accountsservice.pc
+accountsserviceinterfacesdir = join_paths(datadir, 'accountsservice', 'interfaces')
+
+dbus = dependency('dbus-1')
+dbusinterfacesdir = dbus.get_pkgconfig_variable('interfaces_dir',
+  define_variable: ['datadir', datadir])
+
+polkit_gobject = dependency('polkit-gobject-1')
+polkitpolicydir = polkit_gobject.get_pkgconfig_variable('policydir',
+  define_variable: ['prefix', prefix])
+
+subdir('accounts-service')