Move to single endpoints

Yes, we've had some bad coding; creating, editing or gathering an entity all has their own endpoints, this should be merged into one with method types.

Current example:
```
[GET] /api/entity/get
[POST] /api/entity/create
[POST] /api/entity/update
[POST] /api/entity/delete
```

Should be:
```
[GET] /api/entity
[POST] /api/entity
[PUT] /api/enity
[DELETE] /api/enity
```