miurahr/aqtinstall: Support list command, Qt 5.15.1.

Hiroshi Miura, , Nelson Chen, Kyle Altendorf, , Felix Barz, , Martin Delille, Thomas Grainger &
Added Support Qt 5.15.1 Add list command. (#161) Depend py7zr v0.9.* Fixed When we start an installation, all packages are downloaded whatever the specified platform.(#159)
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.