remove treehouse-format crate and collapse everything into src

tests/it/vfs/file.rs

@@ -0,0 +1,22 @@
+use treehouse::vfs::{entries, query, BufferedFile, Content, VPath};
+
+fn vfs() -> BufferedFile {
+    BufferedFile::new(Content::new("text/plain", b"hewwo :3".to_vec()))
+}
+
+#[test]
+fn dir() {
+    let vfs = vfs();
+    assert!(entries(&vfs, VPath::ROOT).is_empty());
+}
+
+#[test]
+fn content() {
+    let vfs = vfs();
+    assert_eq!(
+        query::<Content>(&vfs, VPath::ROOT)
+            .map(|c| c.bytes())
+            .as_deref(),
+        Some(b"hewwo :3".as_slice()),
+    );
+}