Internal function to check column roles.
Usage
task_check_col_roles(task, new_roles, ...)
# S3 method for class 'Task'
task_check_col_roles(task, new_roles, ...)
# S3 method for class 'TaskClassif'
task_check_col_roles(task, new_roles, ...)
# S3 method for class 'TaskRegr'
task_check_col_roles(task, new_roles, ...)
# S3 method for class 'TaskSupervised'
task_check_col_roles(task, new_roles, ...)
# S3 method for class 'TaskUnsupervised'
task_check_col_roles(task, new_roles, ...)