cp opengles1.nit  opengles1_epoxy.nit

Because of things explained in the debian bug [754397](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=754397), the compilation of mnit project fails on linux systems with a recent mesa library.

One way to solve the problem is to use the lixepoxy that hide sole GL complexities.
Hover, libepoxy is not available in the native android toolchains.
So either you fail to compile for linux, or you fail for android.

The simplest workaround I found to solve this dilemma was to duplicate the module mnit/opengles1.nit.
It is ugly, but it should works the time opengles3 is lib-ified in Nit.