Release 1.0.0-rc3

• update to .NET 9
• feat: include .reg in windows file dialog #37
• feat: use warning loglevel on missing assets when using --loose #39
• feat: first class support for region compiles
• feat: allow ignoring files with _pack3rignore_ in path
• feat: add support for script cmds changemodel and changeskin
• feat: add logging if shader references missing jpg but tga is found
• feat: add logging for missing file extension in speakerscript #44
• fix: newest file not actually picked on mod folder duplicates
• fix: add missing alias to --mods
• perf: simplify line reading
• perf: misc improvements
• perf: don't parse references from in unpacked models/skins
• perf: add ISpanFormattable to QPath and QString
• chore: update license
• build: update dotnet.yml workflow to 9.0.0
• build: optimize for speed in release compile #38
• test: fix test compile