Provide the conversion between two units of measure.
# To run in interactive mode:
units
# To show the conversion between two simple units:
units quarts tablespoons
# To convert between units with quantities:
units "15 pounds" kilograms
# To show the conversion between two compound units:
units "meters / second" "inches / hour"
# To show the conversion between units with different dimensions:
units "acres" "ft^2"
# To show the conversion of byte multipliers:
units "15 megabytes" bytes