v0.1.4

• Improved the c.ex context manager. A new variable for each context is not needed. Instead, the original c is used.
• Added a pack_format parameter to cenerator.Pack. This should be specified for all new packs. Currently, no functionality is affected, but it may be used to change output in the future if breaking changes to the pack format are made.
• Added support for representing NumberValues in SNBT format
• Project: Transitioned to pyproject.toml from setup.py