Option to see total download/install size
Current Behavior: The software view screen shows installed size of that individual software.
Requested Behavior: The view screen should also show total download and installed size.
Reason: In case of most Unix like distributions, packages are not delivered as single chunk, but as multiple package of inter-depended packages. The installed size for individual software will be meaningless in such cases. Also the major package managers shows total download size and total install size, including the dependencies.