created a delete function

src/table.rs

@@ -100,6 +100,13 @@ impl Table {
         Ok(())
     }
     
+    pub fn delete_collection(&mut self, name:String) -> Result<(), Box<dyn Error>>{
+        let selected_row = self.get_row(name.clone()).expect("No collection with that name in table");
+        remove_file(&selected_row.path)?;
+        self.collections.remove(&name);
+        Ok(())
+    }
+
     pub fn update<T:Serialize>(&mut self, name: String, entry: Collection<T>)-> Result<(), Box<dyn Error>>{
         // TODO: this currently wipes out files and rewrites the entirety of them. Update to only change the sections that need to change.
         let selected_row = self.get_row(name).expect("No collection with that name in table.");