share/png: intro the libpng base code for the Android platform

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
share/png: configure the png library for android

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
share/png: add Android specific makefiles to the png library

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
share: intro a README file to explain the sub-folders

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib: intro the android implementation of mnit

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib: import the android module from mnit_android

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
nitg/android: add a deeper folder to generated project

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
nitg/android: compile with the png lib

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
nitg/android: load assets on the APK

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
nitg/android: move generate apk file (with -o or locally)

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
example: update mnit examples with android version

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
NOTICE: updated with info of the libpng project

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
Merge remote-tracking branch 'alexis/more-android'

* Adds the libPNG project to the share folder. This library is not available in the Android NDK and thus must be added to each generated apk.
* Adds the Android mnit implementation
* Improves nitg compilation for Android to support mnit projects
* Update the mnit examples with their Android version
* Play Hunted Dino on Android!