Feature/case insensitive name

[VLuisa]

Resolves #72

• Using ilike operator to match case insensitive regular expressions for firstName and lastName
• Refactored Planter to use filter object instead of string

[VLuisa]

@nmcharlton Ah I didn't check the tests, and I see now it's looking for the getBackloopString() function I removed... Should I update the test? [edit: Took a stab at updating the test]

it('getBackloopString() should be: ', () => {
    expect(filterPlanter.getBackloopString()).toEqual(
      expect.stringContaining('&filter[where][personId]=1'),
    );
    ...

[nmcharlton]

Excellent work, thanks @VLuisa!