Allow user to run software locally

[FerreolS]

There are 3 types of "local" way to run software locally:

• the present way where software are installed on the path,
• docker is installed and there are a docker image per software,
• docker is installed and the overall uws-server docker image is installed.

There are at least 3 things to do:

• provide the docker images (e.g. on dockerhub )
• document the way to do install it
• update software list in the menu (see Remove (local) from algorithm list when the algorithm is not present on the path  #98 )

[buthanoid]

Also:

• a "docker software" can be used by the path: the following scripts can be added to the path and thus runned as "local softwares" (provided you have created the "oiservices" docker image) https://github.com/JMMC-OpenDev/oimaging-uws-server/tree/master/runtime/docker/bin
• there is a "LOCAL_MODE" that can be actived by giving the -DRemoteExecutionMode.local=true argument to the jar. When activated, "non-local software" will HTTP-request 127.0.0.1 instead of oimaging.jmmc.fr. In this mode you must be running the docker image that will listen on 127.0.0.1. Note that the "local software" still try to find softwares on the path.

In conclusion, we should find some term to distinguish "local-path softwares" and "local-url softwares" to avoid confusion.