[ndk] Make it raise an error if an old ndk is used
[ndk] Make it raise an error if an old ndk is used

In order to avoid issues with old android's NDKs, we force to raise an error in case that an NDK version lower than the specified is detected. We also add the ability to extract the android's NDK letter version, which for now, will only be used to inform the user of the version which is using

germn/python-for-android,germn/python-for-android,PKRoma/python-for-android,kivy/python-for-android,kivy/python-for-android,kronenpj/python-for-android,germn/python-for-android,kivy/python-for-android,kronenpj/python-for-android,PKRoma/python-for-android,PKRoma/python-for-android,germn/python-for-android,kronenpj/python-for-android,kivy/python-for-android,rnixx/python-for-android,PKRoma/python-for-android,rnixx/python-for-android,rnixx/python-for-android,rnixx/python-for-android,kronenpj/python-for-android,germn/python-for-android,rnixx/python-for-android,germn/python-for-android,rnixx/python-for-android,PKRoma/python-for-android,kronenpj/python-for-android,kivy/python-for-android