add weight input
add atom field
add create statement page
change formatting
add defaults value to new statements
create a theory resource
add basis for the argument editor
refactor properties directive

- move the extraction of the project's schemes into its own module
import services.projectInfo into the argumentCtrl
add a get-edit-argument function
display schemes in the new argument page
add support for the conclusion in the form
primitive POST argument working
automatic generate uuid for incoming arguments
fix bug
New button: new argument graph