Apply the TODO keyword settings.

src/context/global_settings.rs

@@ -1,3 +1,5 @@
+use std::collections::BTreeSet;
+
 use super::FileAccessInterface;
 use super::LocalFileAccessInterface;
 use crate::types::Object;
@@ -8,6 +10,8 @@ use crate::types::Object;
 pub struct GlobalSettings<'g, 's> {
     pub radio_targets: Vec<&'g Vec<Object<'s>>>,
     pub file_access: &'g dyn FileAccessInterface,
+    pub in_progress_todo_keywords: BTreeSet<String>,
+    pub complete_todo_keywords: BTreeSet<String>,
 }
 
 impl<'g, 's> GlobalSettings<'g, 's> {
@@ -17,6 +21,8 @@ impl<'g, 's> GlobalSettings<'g, 's> {
             file_access: &LocalFileAccessInterface {
                 working_directory: None,
             },
+            in_progress_todo_keywords: BTreeSet::new(),
+            complete_todo_keywords: BTreeSet::new()
         }
     }
 }