[Feature Request] Numbered GUI Resource Pack

**Is your feature request related to a problem? Please describe.**
A resource pack which shows the number slots for all (or most) GUIs

**Describe the solution you'd like**
A resource pack which shows the number slots for all (or most) GUIs

**Mod Link** (if relevant)
N/A

**Mod Versions** (what versions does it support?) (if relevant)
N/A

**Mod Config Options** (if relevant)
N/A