Screen recorder settings [1/2]

* Possibility to save preferences regarding pointer
* Possibility to use microphone as audio input

PS2: Add onPreferenceChangeListener for pointer pref

Change-Id: I8c7aa39459db03f38c08756e0248c02a15b8d82e

Conflicts:
	res/values/strings_aicp.xml
	res/xml/aicp_display_animations_settings.xml
	src/com/android/settings/aicp/DisplayAnimationsSettings.java