* added list command filter by side
* changed error logging for --side flags
* removed len checks on side flags
* removed comments previous commit made useless
- Fixed creation of duplicate index entries when importing from CurseForge (fixes#224)
- Automatically remove duplicates in index
- Fixed `packwiz serve` with a custom `--pack-root` argument (fixes#223)
- Fixed `packwiz serve` with a custom index.toml location
- Cleaned up internal serving code, added comments and better errors
- Refactored path handling code
- Improved refreshing/exporting performance
- Factored out duplicated exporting logic
- Replaced GetAllMods calls with cleaner LoadAllMods calls and made the former private
- Improved variable names in update command
- Improved handling of aliassed files
- Changed CheckUpdate to take references to metadata
- Removed the ability to use an absolute path to the index file (that probably didn't work anyway)
- Behaviour change: order of entries in exported files may be random
Added support for importing manual files and rehashing where necessary
Moved cache folder to "local" user folder
Cleaned up messages, saved index after importing
