Add --parameter backtest option and minor improvements

• Add --parameter option to backtest commands, see #596
• Reduce lean engine logs by default in research, see #594
• Improve error message when pushing big files, see #597

Filter Conda vEnv From Push

• Filter Conda vEnv From Source Files See #580

Minor fix for cloud optimizations

• Improve verbose output #572
• Minor fix for cloud optimizations #576
• Fix CI test #575

Enhance optional docker extra arguments support

• Passing "env" to docker as extra-docker-config. See #567

Minor Improvements and Fixes

• Remove hard coded IB version #558
• Add missing reserved directory names #560
• Fix Logging with --verbose for container.data_downloader.update_database_files() #555
• Verify and redownload corrupted .nupkg files #552

Update for new lean live holdings format

• Update for new lean live holdings format. See #549

Fix mount point for C# research

• Fix mount points conflict causing empty project DLL in research environment. Thank you @efJerryYang! See #541
• Add config option to define database update frequency. See #540
• Remove maskpass dependency. See #542

Minor fix for cloud backtests partial statistics

• In some cases cloud backtests might present partial statistics on completion. See #539

Minor Fix For Charles Cloud Deployments

• Fix for Charles lean cloud live deploy #531

Minor improvements For CharlesSchwab Support

• Minor improvements For CharlesSchwab Support. See #517
• Expand verbose flag #530