added get_input function

might want to pull this elsewhere as many different implementations
might use this. maybe a trait perhaps?

src/issue.rs

@@ -1,4 +1,5 @@
 use std::collections::HashMap;
+use std::io;
 
 use clap::ArgMatches;
 use colored::*;
@@ -15,6 +16,12 @@ impl Issue {
     }
 
     pub fn create_issue(&self, config: &Configuration, arg: &ArgMatches) {
+        let client = Client::new();
+    }
 
+    pub fn get_input(&self) -> String {
+        let mut input = String::new();
+        io::stdin().read_line(&mut input).unwrap();
+        input.trim().to_string()
     }
 }