docs/open source v1

[momintlh]

• Renamed from ActorDB to VidXP (Video eXPlain), changes in readme
• Added an OUTLINE in readme.
• Added CONTRIBUTING.MD
• Added .gitignore
• Added MIT license

Before merging, see the current branch to check changes: https://github.com/grayhatdevelopers/vix/tree/docs/open-source-v1

NOTE: these commands do not work? @haroon10725

actordb --help
actordb videoindex samplevideo.mp4  # Index the video
actordb dialogue samplevideo.mp4 "your dialogue query"
actordb scene samplevideo.mp4 "scene description"

I've renamed the commands to reflect the new NAME in README but good to double check if these are still supported, I don't think even the previous commands existed, we can drop these out.

[SaadBazaz]

Looks good to me. Let's work on packaging this so that people can use it easily