Handle eel positions in Golden Mask

Part of #841. #### Checklist - [x] I have read the [coding conventions](https://github.com/LostArtefacts/TR-Rando/blob/master/CONTRIBUTING.md#coding-conventions) - [x] I have read the [testing guidelines](https://github.com/LostArtefacts/TR-Rando/blob/master/CONTRIBUTING.md#testing-guidelines) - [x] I have added a changelog entry about what my pull request accomplishes, or it is an internal change #### Description Assigns relocation points for eels in Golden Mask if player chooses to move awkward enemies. Also removes duplicated locations between black and yellow moray eels, and instead assigns dynamically at runtime. Separated this from the draft PR as the diff is so big.