PC auto-alignment tool

[state-of-the-art]

There is a way to auto-align the point cloud using similar parts.
This tool will be a great help with both capture modes - panorama and walk-around.

I think the best way to auto-align is place both pc relatively close to similar sides and give this to similarity search algorithm to search in this direction (and not try to compare other sides of the pc objects).

Result of this comparison should be new position of the pc or fuse of 2 pc objects into one mesh.

[state-of-the-art]

http://www.pointclouds.org/documentation/tutorials/walkthrough.php#registration

[state-of-the-art]

Building of PCL requires alot of dependencies, so it will be better to switch to CMake: #62

[state-of-the-art]

The build process of multiple pcl deps somehow resolved and seems working, but now it's reqired to integrate the PCL into the application...

[state-of-the-art]

PCL lib was integrated to the build system - seems working for desktop build.

[state-of-the-art]

Android build of the boost library is quite complicated...

[state-of-the-art]

Finally nailed the boost build for armv7/arm64...

[state-of-the-art]

And now all the dependencies (including PCL) are ready and seems working on android finally.

[state-of-the-art]

No, looks like it's to hard to bring up in v0.5.0 - so will move to the next minor release v0.6.0