identify files manually by magic numbers

Cargo.lock

@@ -347,6 +347,11 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34aa73646ffb006b8f5147f3dc182bd4bcb190227ce861fc4a4844bf8e3cb2c0"
 
+[[package]]
+name = "enolib"
+version = "0.5.0"
+source = "git+https://codeberg.org/simonrepp/enolib-rs?tag=0.5.0#011a93092e5127c9354d643e9ac51ff592cf59f2"
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -662,6 +667,12 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "opus_headers"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afbb993947f111397c2bc536944f8dac7f54a4e73383d478efe1990b56404b60"
+
 [[package]]
 name = "pad"
 version = "0.1.6"
@@ -1054,10 +1065,12 @@ name = "taggart"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "enolib",
  "file_type",
  "hex",
  "id3",
  "opener",
+ "opus_headers",
  "pad",
  "tek_tui",
  "unicode-width 0.2.0",