Added constants

src/constants.rs

@@ -0,0 +1,4 @@
+pub const DEFAULT_MUSIC_EXTENSION: &str = FLAC_EXTENSION;
+pub const FLAC_EXTENSION: &str = ".flac";
+pub const WAV_EXTENSION: &str = ".wav";
+pub const MPTHREE_EXTENSION: &str = ".mp3";

src/lib.rs

@@ -1,4 +1,5 @@
 pub mod access_level;
+pub mod constants;
 pub mod login_result;
 pub mod song;
 pub mod token;