Move issue loading logic into the publicly-exposed library methods.

src/pitpkg/private/libpit.nim

@@ -306,6 +306,13 @@ proc loadIssues*(path: string): seq[Issue] =
   # Finally, save current order
   result.storeOrder(path)
 
+proc loadIssues*(tasksDir: string, state: IssueState): seq[Issue] =
+  loadIssues(tasksDir / $state)
+
+proc loadAllIssues*(tasksDir: string): TableRef[IssueState, seq[Issue]] =
+  result = newTable[IssueState, seq[Issue]]()
+  for state in IssueState: result[state] = tasksDir.loadIssues(state)
+
 proc changeState*(issue: Issue, tasksDir: string, newState: IssueState) =
   let oldFilepath = issue.filepath
   if newState == Done: issue.setDateTime("completed", getTime().local)