new repositories for OpenJDK-mobile

[Johan Vos]

Hi,

I asked to create a new repository for doing mobile-related work in OpenJDK.
While waiting for this, we meanwhile created a mirror at github:

https://github.com/javafxports/openjdk-mobile

This is a mirror of

There are 2 branches here: master and develop.
Both the master and the develop branch will be automatically synced with
the hg jdk/jdk repository.

My first goal is to add all previously created mobile-specific code into
the develop branch, and add CI and testing to that branch.
The CI flags (travis and appveyor) should always stay green in this branch.

We can then evolve the project by adding more mobile-specific code in the
develop branch.

It is my hope to eventually propose changes that are in develop branch (and
thus required to make OpenJDK run on mobile) upstream to jdk/jdk. That way,
they will automatically sync back to the master branch.

We are following the same procedure for an OpenJFX mirror at
https://github.com/javafxports/openjdk-jfx.

- Johan