Clean up apt installs in Dockerfile.

Dependencies

• [2] MJDIMD5B Improve documentation of local docker-compose setup.
• [3] NJNMO72S Add zcash.com submodule and update client to modern halogen.
• [4] 3TAMXHCZ Add migrations to server startup.
• [5] EW2XN7KU Update docker build, clean up migration for payments tables.
• [6] GMYPBCWE Make docker-compose work.
• [7] QTHFTPDX Clean up dockerfile organization
• [8] HO2PFRAB Client login now handles response correctly.
• [*] 4ZLEDBK7 Initial attempts at dockerizing, cabal isn't cooperating.

Change contents

• replacement in Dockerfile at line 16
  [3.1957]→[3.159:180](∅→∅),[3.235]→[3.159:180](∅→∅)
  − libsecp256k1-dev
  [3.1957]

  [3.180]
  + libsecp256k1-dev pkg-config ca-certificates
• edit in Dockerfile at line 18
  [3.181]→[3.181:244](∅→∅),[3.244]→[3.269:270](∅→∅),[3.269]→[3.269:270](∅→∅)
  − RUN apt-get install -y --no-install-recommends ca-certificates

  −
• edit in Dockerfile at line 48
  [3.633]→[2.2188:2246](∅→∅)
  − RUN apt-get install -y --no-install-recommends pkg-config