Add endpoint for the current week.

[ramanxg]

It would be nice to show the current week in AntAlmanac as it does in PeterPortal Core. Let's move this functionality over to the API, and serve it here.

In PeterPortal Core, this is the code for getting the current week. https://github.com/icssc-projects/peterportal-client/blob/master/api/src/helpers/week.ts

This endpoint references a MongoDB instance which stores a cached value of the week, so it doesn't always make a request to UCI.

For now, we can comment out the part for caching the week.

TODO:

• [x] Create helper method for getting the current Week.
• [x] Create a new REST endpoint that will return the current Week (/rest/v0/schedule/week. We can do this in /rest/v0/schedule.js

• [x] Create a new GraphQLObject Type, name weekType, with fields:

  {
    week: GraphQLInt,
    quarter: GraphQLString,
    display: GraphQLString
  }

  • [x] Create a new GraphQLQuery

    week: {
    type: weekType,
    
    // define function to get a course
    resolve: // call getWeek function
    
    // documentation
    description: "Returns the current Week and Quarter of UCI Instruction."
    }

[ramanxg]

This might have to be changed, but rather than only using today's date, it should also be able to take in a date as a parameter. and use that. (default can be today's date).