lib: move mnit::app to mnit::mnit_app to prevent future conflic with ::app

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib: intro app.nit with logging methods

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib: mnit_app use app.nit

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib: move android.nit to a project ::android

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
android: imports app.nit

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib/android: move platform declaration to a submodule

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib: add log features from mnit_app::android_app to ::android

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
Merge: Intro of app.nit and extract features from mnit_android to android

Rename modules and reorganize their features.

Pull-Request: #467
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>
Reviewed-by: Chanoir <chanoir.romain@courrier.uqam.ca>
Reviewed-by: Jean Privat <jean@pryen.org>