Add a configure file to the Conquest root directory

[lionelalexandre]

It would be helpfull to have a 'simple' configure file for editing the system.make in src/ and checking if libraries are available in standard locations. Probably we can already make a list of them... and choose the language (bash/python?)

[smujahed]

This is a really good idea since we know that CONQUEST isn't difficult to compile but we've worked with it for some time. This is a basic UX addition.

I'm going to suggest BASH, or a check for some shell, since all command lines will use a shell, whereas not systems will have a Python installation and we would also have to consider Python versions.

[Paraquat]

Probably an unpopular idea, but how about cmake? It's a pain to set up, but offers a pretty frictionless set up for people who aren't used to dealing with this kind of thing.

[davidbowler]

I've heard bad things about getting Cmake itself installed on some systems (mainly from sysadms) so I would hope to keep it as simple as possible. GNU Automake (and related tools) is another possibility.