Added roo_display. (#3693)

Author: dejwk

repositories.txt

@@ -3,6 +3,7 @@ https://github.com/allexoK/TinyDecisionTreeClassifier
 https://github.com/DefHam140/IOTClient
 https://github.com/hoeken/PsychicHttp
 https://github.com/dejwk/roo_collections
+https://github.com/dejwk/roo_display
 https://github.com/dejwk/roo_scheduler
 https://github.com/dejwk/roo_time
 https://github.com/sensebox/senseBoxBLE