Add logger

Merge branch 'main' into fix/spelling-mistakes

Add AbstractInvLib

backend: Fix spelling mistakes ...

This commit fixes spelling mistakes made in line 14 and line 54

Do lots of stuff that needs to be improved

Get ready to develop backend

Working on showing products ...

* frames with id "products" gets filled with product widgets
* changed image object to nfp
* added bimg object
* button objects can now hold metadata (not for enduser)

Removed submodule mark

Loads content properly now ...

Content is e.g. files in data:
  * Pages, Fonts, Themes, Configs etc.
* Basalt is now its own actual folder and therfore can be modified too
* miniBDF now moved to basalt lib and is able to actually render text too
* Data structure is now more clean
* Simplified config files a bit
* Removed depricated content from init.lua and added more comments etc.

* We btw. need a logger really badly!!!

Krist API in a separate directory.

Code is now compatible with file structure ...

* Merged config to data folder
* init.lua now works with the expected file structure
* Added default page (templates will be added later )
* Small changes to default interface
* Products.lua file now supports some more meta data

Switching to Basalt Framework

Forgot offset ...

"Squid, theres a kritical flaw over here"
~Technoblade

Added BDF parser ...

Will be needed for our own "bigfont", that will allow the usage of other fonts too.

Create krist.lua

started renderer ...

+ Basic TUI (aka. GUI) that can handle widgets.
+ The widget label got also added and can wrap around the screen
+ init file got a bit extended; it now does:
  + load widgets
  + load pages
  + load colors
+ init also is now split  in a init and main function

Create basic folder structure