Added existing dockerfiles used by che.

[JamesDrummond]

1. Copied everything from eclipse/che repo BUT /dockerfiles/Che-server folder. Removed the leading /dockerfiles folder after the move. Copied /dockerfiles/che-server/Dockerfile file to root directory.
2. Copied the contents of the codenvy/dockerfiles repo to a directory called /recipes.

[JamesDrummond]

@TylerJewell I removed che-server Dockerfile and add license + copy write header to files missing it.

[TylerJewell]

I am a +1 for the merge once others give a thumbs up. This would then be our base repository for making dockerfile changes.

[TylerJewell]

@benoitf @eivantsov @riuvshin - FYI - review this new repository. This preserves our ability to release images independently of Che releases. This takes out of the /che repo some important items that we need to release more frequently.

@JamesDrummond - we have two pull requests on the che repo that affect che-file and che-launcher. After those pull requests are merged into che repository, then we need to bring those files over here.

After we are confident that the CI systems can work with this new repository - we can then turn off CI for the other repositories and active it here, then removing the duplicate files from the other locations.

[benoitf]

I would wait merge of eclipse-che/che#2119 and eclipse-che/che#2048 else this repository will be outdated

[TylerJewell]

eclipse-che/che#2119 has been closed, so you can grab the updated files from /che/dockerfiles/che-launcher now.

[JamesDrummond]

Updated che-launcher dockerfiles.

[benoitf]

eclipse-che/che#2048 merged
and waiting for eclipse-che/che#2211
after that we're good

[TylerJewell]

+1 - Jame's first pull request!