user defined func arglist+returnlist scaffolding
Support for functions with arguments implemented
Fixed func_call, func_args and func_ret_values
Added call stack
merge after call stack update and updated gitignore
fixed assignments, basic lists work, lists of lists in progress
support for lists of lists implemented
support for empty lists implemented
Added node removal, getAdjacent, member funcation call
merged into master
Foreach loops and stuff