Adds support for EHB-enabled image conversion.
The new switch simply expands loaded palette with EHB color counterparts so that user doesn't have to pass in 64-color palette created only for purpose of bitmap conversion.
Also, minor cleanup in tool's code reduces amount of warnings under MSVC.
Checklist
[x] My code follows the code style of this project.
[ ] My change requires a change to the documentation.
Description
Adds support for EHB-enabled image conversion. The new switch simply expands loaded palette with EHB color counterparts so that user doesn't have to pass in 64-color palette created only for purpose of bitmap conversion.
Also, minor cleanup in tool's code reduces amount of warnings under MSVC.
Checklist