Add helper functions to read any format in `lightmotif-io`

lightmotif-io/src/jaspar/mod.rs

-//! Parser implementation for matrices in JASPAR (2016) format.
+//! Parser implementation for matrices in JASPAR (raw) format.
 //!
 //! The [JASPAR database](https://jaspar.elixir.no/docs/) stores manually
 //! curated DNA-binding sites as count matrices.
@@ -114,6 +114,10 @@ impl<B: BufRead> Iterator for Reader<B> {
     }
 }
 
+pub fn read<B: BufRead>(reader: B) -> self::Reader<B> {
+    self::Reader::new(reader)
+}
+
 #[cfg(test)]
 mod test {
 

lightmotif-io/src/uniprobe/mod.rs

@@ -129,6 +129,10 @@ impl<B: BufRead, A: Alphabet> Iterator for Reader<B, A> {
     }
 }
 
+pub fn read<B: BufRead, A: Alphabet>(reader: B) -> self::Reader<B, A> {
+    self::Reader::new(reader)
+}
+
 #[cfg(test)]
 mod test {