Imp: implement code-editor input and simple-html module

[eri-trabiccolo]

fixes #59

[ghost]

Adding a new module type which includes a new input type requires unfortunately 10 files to modify / create at the moment.
I'll try to reduce this complexity for the future. A first simplification would be to specify the module's localized js params when registering the module in php, which is possible but we don't use it for the Nimble module for the moment. <= this way we wouldn't have to modify the inc/sektions/_dev_php/1_0_0_sektions_customizer_assets.php. one file less !

[eri-trabiccolo]

ah yeah, that file less would definitely change my life! :P
Thanks!

[ghost]

yes, I'm being totally altruist there. I know. and I know it touches the very christian part of your soul.