Convert FOB submodule to regular folder

environments/optimizer/FOB/examples/neps/README.md

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+# Using FOB with NePS for HPO
+Run all commands from the root of the FOB repository.
+
+## Setup
+```bash
+conda create -n fob-neps python=3.10 -y
+conda activate fob-neps
+pip install -r requirements.txt
+pip install -r examples/neps/requirements.txt # this will downgrade some packages
+pip install -e .
+```
+
+## Example
+```bash
+python examples/neps/hpo.py examples/neps/experiment.yaml
+```