added DataStore.getProjects()

DataStore.py

@@ -39,3 +39,16 @@ CREATE TABLE hours (
         conn.commit()
         c.close()
         conn.close()
+
+    def getProjects(self):
+        c = self.conn.cursor()
+        c.execute('''
+SELECT id, name
+FROM projects
+''')
+        projects = {}
+        for row in c:
+            projects[row[0]] = row[1]
+        c.close()
+        self.conn.commit()
+        return projects