Add reactclient submodule.

Dependencies

• [2] NJNMO72S Add zcash.com submodule and update client to modern halogen.
• [*] AXKKXBWN Initial attempt at writing down my ideas for a company based on trust.

Change contents

• edit in .gitmodules at line 4
  [2.94]
  + [submodule "reactclient"]

  + path = reactclient

  + url = git@github.com:MarcoEzekiel/Aftok-React.git
• file addition: reactclient (d--r------)
  [4.2]