Cactus Movement Avoidance Setting

**## Describe your suggestion**
Please add a setting to modify which blocks baritone avoids walking into. My builds, _cough cough not a cactus farm_ , are impossible due to this feature.

**In file:**
[src/main/java/baritone/pathing/movement/MovementHelper.java](https://github.com/cabaletta/baritone/blob/50df7b20260c573679af36431732f100487033ea/src/main/java/baritone/pathing/movement/MovementHelper.java#L388)

**In line: 388 (for cactus specifically)**

**## Settings**
The ability to add or remove blocks from this list would be really useful. Maybe even a cost that could be assigned to each block could be useful, but to be honest the ability to toggle this alone would unlock a lot of builds. _cough cough not a cactus farm_

**## Context**
Adding this setting would allow users to build structures with hazardous blocks such as magma blocks or cactus blocks.

**## Final checklist**
- [x] I know how to properly use check boxes
- [x] I have not used any OwO's or UwU's in this issue. lol