Added fastlane metadata directory

Added metadata directory by hand, as fastlane requires access to Google Play.
This should not cause any trouble, as f-droid simply uses the same file structure
as fastlane.

Author: JanmanX

fastlane/metadata/android/en-US/full_description.txt

@@ -0,0 +1,6 @@
+A simple application to encrypt text. Can be used in combination with many
+other applications, to increase security and privacy.
+
+This application can be used standalone, as well as in-place, to avoid the
+tedious application switching. To encrypt text, simply highlight the text, and
+tap "ENCRYPT TEXT" from the popup menu.

fastlane/metadata/android/en-US/images/featureGraphic.png

@@ -0,0 +1 @@
+Minimalistic application to encrypt plain text using AES 256.

fastlane/metadata/android/en-US/images/icon.png

@@ -0,0 +1 @@
+Encrypt Text