Create new endpoint in OfficeHoursController for `/api/member/officeHours` that returns a list of all office hours for the current member.

[pconrad]

There is an existing endpoint:

  @GetMapping(value = "/api/public/officeHours", produces = "application/json")
    public ResponseEntity<String> getOfficeHours() throws JsonProcessingException {
        List<OnlineOfficeHours> officeHourList = officeHoursRepository.findAll();
        ObjectMapper mapper = new ObjectMapper();

        String body = mapper.writeValueAsString(officeHourList);
        return ResponseEntity.ok().body(body);
    }

In this issue, we add a new version of this with just one difference: Instead of using:

officeHoursRepository.findAll();

We:

• look up the current user's email
• we find only the office hours that have an email for that user
• we return only those

This can be used to populate the office hours in a OfficeHoursSelector component on the TutorNotesForm for entering new office hours.