Add additional shapes/images at meme creation

[gsantner]

Allow to place shapes somehwere in the image, e.g. a hat somewhere. This should be moveable until user accepts. After accepting the hat will be drawn to a copy of the original edit image. The hat should be still there if e.g. the text or a font is changed (image redrawn). The shape also needs to be scaleable (edges) This may share it's codebase with #46.

Show e.g. a list of shapes:

Add a moveable shape to the image:

[gsantner]

If you need more information ask. This issue is an idea, and about people to start contributing to the project. It has not much information because I pasted many ideas/issues and just let them out at the same time :). If you are interested in working on this, and have questions I can give you more details on this.

Register on https://hacktoberfest.digitalocean.com/, send a PR to fix this and get your t-shirt for free (4 accepted PRs to same or different GitHub repositories needed) :). You have to mention the issue number in the commit/PR (e.g. fix #20 / about #8) Find more hacktober issues from my projects: https://github.com/search?&q=label%3Ahacktoberfest+user%3Agsantner