Move GitHub workflows into single file, split build-and-test

.github/actions/test-transfer/action.yml

@@ -1,16 +0,0 @@
-name: 'test-transfer'
-description: 'test aquatic file transfer'
-outputs:
-  # http_ipv4:
-  #   description: 'HTTP IPv4 status'
-  http_tls_ipv4:
-    description: 'HTTP IPv4 over TLS status'
-  udp_ipv4:
-    description: 'UDP IPv4 status'
-  wss_ipv4:
-    description: 'WSS IPv4 status'
-runs:
-  using: 'composite'
-  steps:
-    - run: $GITHUB_ACTION_PATH/entrypoint.sh
-      shell: bash