Publish Database Project Issue for multiple permissions files for Schema or SchemaObjectType and File type

Issue1: When the source project contains multiple permission files, such as Schema or SchemaObjectType,, we should see that many number of permissions .sql files created. However, only one file is being created with the last permission it processes, seems overwriting the same file is happening.

Issue2: When the project DacFx extract target is of the File type, it should create a single file or use the existing file and append all scripts to it. However, instead of adding all scripts, it adds only a master key script and not adding the remaining differences

- SqlPackage or DacFx Version: Both
- .NET Framework (Windows-only) or .NET Core: All
- Environment (local platform and source/target platforms): Any

**Did this occur in prior versions? If not - which version(s) did it work in?** No

(DacFx/SqlPackage/SSMS/Azure Data Studio)