adding of nodes that aren't in the add node list
register module from __init__.py -> no need for a register function in every file
remove register functions
more register removals
register node categories in __init__.py
remove other register functions
rough implementation of custom nodes
cleanup
template node
cleanup to string node
cleanup all conversion nodes
cleanup
cleanup input nodes
cleanup output nodes
cleanup string nodes
cleanup math nodes
cleanup list nodes
cleanup expression node
cleanup system nodes
rename sub program nodes