This adds support for RDP6 32bpp bitmaps.
- RDP6 RLE implementation
- `RDP6_BITMAP_STREAM` pdu parsing
- New CLI arguments to select color depth and color reduction
- Unit tests and fuzzing for implemented functionality
Test bpp32 mode without lossy compression (RGB colorspace)
```
cargo run -p ironrdp-client -- -u vmbox -p password --color-depth=32 <IP_ADDRESS>
```
Test bpp32 mode with lossy compression (YCoCg colorspace, subsampling, color loss)
```
cargo run -p ironrdp-client -- -u vmbox -p password --color-depth=32 --lossy-bitmap-compression <IP_ADDRESS>
```
Issue: ARC-149