Refactor affiliations page using React. Move public apis related to affiliations to affiliations_api

LCOV of commit b620ef7 during Continuous Integration #2911

Summary coverage rate:
  lines......: 64.1% (13710 of 21376 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate: n/a

LCOV of commit fe884cf during Continuous Integration #3523

Summary coverage rate:
  lines......: 65.3% (13693 of 20964 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate: n/a

LCOV of commit f2d05e9 during Continuous Integration #3527

Summary coverage rate:
  lines......: 65.3% (13693 of 20964 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate: n/a

LCOV of commit 97e3ba4 during Continuous Integration #3566

Summary coverage rate:
  lines......: 65.5% (13982 of 21341 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate: n/a

LCOV of commit 034e9b8 during Continuous Integration #3572

Summary coverage rate:
  lines......: 65.4% (13966 of 21340 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate: n/a

LCOV of commit fa5281a during Continuous Integration #3575

Summary coverage rate:
  lines......: 65.5% (13982 of 21345 lines)
  functions..: no data found
  branches...: no data found

Files changed coverage rate: n/a