Tango refactoring (#534)

* Created general CameraMobile interface. Tango is now optional. Camera is disabled on visualizaion (battery saving).

* Working android app on non-tango android phones (tested on x86_64 android emulator).

* fixed typo

* android: updated tango not available msg

* android: fixed build with latest android sdk/ndk

* Added ARCore limited support for pose and rgb streams.

* Added AREngine support. Don't assert if depth size is not a modulo of rgb size.

* Added ARCore shared camera support

* android: fixed read/write runtime permissions for >=api23. arcore ndk: added feature point cloud. Fixed file sharing persmissions (>=api24 issue)

* ARCore NDK: mapping with feature point cloud

* android: Added post build strip command to reduce native library size

* android: fixed some compilation issues

* android: put back gtsam as default optimizer, manifest min api is dynamic based on cmake parameters

* AREngine: min api 24

* android: Fixed build without AREngine

* android: fixed not available libraries for API<24

* android: fixed build with old cmake versions

* android: set arcore min api to 23

* android: fixed arengine error on start when not built with native arengine support

* android: fixed tango camera permission for api>=23

* Added bionic android docker files

* Fixed wrong 3D words projection when depth size is not an exact multiple of rgb size. DbViewer: fixed images size not correctly shown in label of the calibration. ImageView: fixed depth scale when depth size is not a multiple of rgb size

* CameraMobile: added exact display rotation for local transform

* DbViewer: fixed gravity link shown in constraint view, show full local transform matrix in camera calibration label

* Android: fixed localization mode in visualization, fixed some tansitions between some UI states

* Android: Hide stop button when HUD is hidden. Updated About years.

app/android/CameraAvailability.h.in

@@ -0,0 +1,39 @@
+/*
+Copyright (c) 2010-2014, Mathieu Labbe - IntRoLab - Universite de Sherbrooke
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the Universite de Sherbrooke nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL UNIVERTY DE SHERBROOKE BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+ 
+#ifndef CAMERAAVAILABILITY_H_
+#define CAMERAAVAILABILITY_H_
+
+// This is auto-generated!
+
+@TANGO@#define RTABMAP_TANGO
+@ARCORE@#define RTABMAP_ARCORE
+@ARENGINE@#define RTABMAP_ARENGINE
+
+
+#endif /* CAMERAAVAILABILITY_H_ */
+