Breaking Changes from v3 to v4

We are now fully migrated 🎉 and all helpers are in typescript and working correctly

• We no longer support the legacy helpers that were in this project as we have migrated to a new helper system.
• createHandlebars is now deprecated in favor of just using fumanchu() and no more needing async.
• The FumanchuOptions has been changed on filtering and also now fully supported with fumanchu()
• Caching is now enabled by default! 🚀