Vendor dependencies

Let's see how I like this workflow.

vendor/dirs/src/wasm.rs

@@ -0,0 +1,24 @@
+// Stub definitions to make things *compile*.
+
+use std::path::PathBuf;
+
+pub fn home_dir()       -> Option<PathBuf> { None }
+
+pub fn cache_dir()      -> Option<PathBuf> { None }
+pub fn config_dir()     -> Option<PathBuf> { None }
+pub fn data_dir()       -> Option<PathBuf> { None }
+pub fn data_local_dir() -> Option<PathBuf> { None }
+pub fn preference_dir() -> Option<PathBuf> { None }
+pub fn runtime_dir()    -> Option<PathBuf> { None }
+pub fn executable_dir() -> Option<PathBuf> { None }
+pub fn state_dir()      -> Option<PathBuf> { None }
+
+pub fn audio_dir()      -> Option<PathBuf> { None }
+pub fn desktop_dir()    -> Option<PathBuf> { None }
+pub fn document_dir()   -> Option<PathBuf> { None }
+pub fn download_dir()   -> Option<PathBuf> { None }
+pub fn font_dir()       -> Option<PathBuf> { None }
+pub fn picture_dir()    -> Option<PathBuf> { None }
+pub fn public_dir()     -> Option<PathBuf> { None }
+pub fn template_dir()   -> Option<PathBuf> { None }
+pub fn video_dir()      -> Option<PathBuf> { None }