Add repeat recent skill (MycroftAI#251)

.gitmodules

@@ -397,6 +397,9 @@
 [submodule "mycroft-persona-fallback"]
 	path = mycroft-persona-fallback
 	url = https://github.com/MycroftAI/skill-fallback-persona.git
+[submodule "matthew-repeat-recent-skill"]
+	path = matthew-repeat-recent-skill
+	url = https://github.com/MatthewScholefield/skill-repeat-recent
 [submodule "skill-confucius-say"]
 	path = skill-confucius-say
 	url = https://github.com/aussieW/skill-confucius-say.git

README.md

@@ -158,6 +158,7 @@ wiki pages.  Also please include the phrase to trigger on as well for your skill
 | :heavy_check_mark:  | [Bitcoin price](https://github.com/dmp1ce/mycroft-bitcoinprice-skill#readme)    | Check the price of bitcoin<br>```what is the bitcoin price?``` |
 | :heavy_check_mark:  | [ESP8266](https://github.com/Dark5ide/esp8266-skill.git#readme)                 | Communicate with an ESP8266 in the context of home automation.<br>```Turn on the lamp``` |
 | :heavy_check_mark:  | [Podcast Skill](https://github.com/JamesPoole/podcast-skill#readme)             | Listen to the latest episodes of your favourite podcasts.<br>  ```play the latest episode of the reply-all podcast``` |
+| :heavy_check_mark:  | [Repeat Recent](https://github.com/matthewscholefield/skill-repeat-recent#readme) | Repeat what you or Mycroft just said<br>```What did you just say?``` |
 | :construction:      | [Brain](https://github.com/skeledrew/brain-skill#brain-skill)                   | Chain intents and provide some services                                                 |
 | :construction:      | [Calculator](https://github.com/TREE-Edu/calculator-skill.git)                  | Conversation-based calculator.<br>```Do some math```
 | :construction:      | [Dice roll](https://github.com/Friday811/skill-dice#skill-dice-skill)           | Roll dice spoken in RPG notation.                                                       |