Merge branch 'mega_app' into 'master'

add mega client

meaga app: https://github.com/meganz/android

I've been trying to get the developer to add a branch for f-droid: https://github.com/meganz/android/pull/9

but i think they will not take care about this. So this build script will remove all the nonfree stuff by itself.
I just not 100% percent sure if all the libs used to build the native part are free, but it seems so (a check would not be bad).

See merge request !1678

metadata/mega.privacy.android.app.txt

@@ -0,0 +1,35 @@
+AntiFeatures:NonFreeNet
+Categories:Internet
+License:Mega Limited Terms of Service
+Web Site:https://mega.nz/#mobile
+Source Code:https://github.com/theScrabi/mega-fdroid
+Issue Tracker:https://github.com/theScrabi/mega-fdroid/issues
+
+Auto Name:Mega App
+Summary:A client to access MEGA Cloud Storage
+Description:
+Mega is a cloud storage and file hosting service produced by Mega Limited. The
+New Zealand-based website was launched on January 19, 2013 by Kim Dotcom. Mega
+mobile apps are available for Windows Phone, Android, BlackBerry OS and iOS.
+Mega most notably advertises its feature that all files are encrypted locally
+before they are uploaded.
+
+The official source code of the app contains binary blobs, so this tracks a fork
+which builds those from source. Hence, versions might become available with a
+certain lag.
+.
+
+Repo Type:git
+Repo:https://github.com/theScrabi/mega-fdroid.git
+
+Build:3.0.12.2-fdroid,82
+    commit=v3.0.12.2-fdroid
+    subdir=app
+    submodules=yes
+    gradle=yes
+    prebuild=sed -i -e 's%NDK_ROOT=$(HOME)/android-ndk%NDK_ROOT=$$NDK$$%g' src/main/jni/Makefile
+
+Auto Update Mode:Version v%v
+Update Check Mode:Tags
+Current Version:v3.0.12.2-fdroid
+Current Version Code:82