make the meson.build stub a bit more well-rounded by exporting files
Provide variables for:
- the found program keymap-gen
- the CSV mapping table
and for enhanced convenience, override keymap-gen
This allows grabbing the variables from another Meson project without
futzing with submodule paths, something that Meson doesn't really
encourage.
diff --git a/meson.build b/meson.build
index eb9416b..6d263aa 100644
--- a/meson.build
+++ b/meson.build
@@ -1 +1,6 @@
-project('keycodemapdb')
+project('keycodemapdb', meson_version: '>=0.46.0')
+
+keymap_gen = find_program('tools/keymap-gen')
+meson.override_find_program('keymap-gen', keymap_gen)
+
+keymaps_csv = files('data/keymaps.csv')
