0.6.3

• added is_binary, is_text, and mime fields
• duration for MP3 files
• BASE64 function
• treat PSB, PSD, and TIFF files as images (for is_image)
• improved .gitignore support on Windows
• PowerShell fixes

Thanks to @PhiLhoSoft, @seeba8, and @Suleman-Elahi for bug reports, testing, and suggestions!