Adds a docker image and build task for said image

cli/server.dart

@@ -0,0 +1,9 @@
+Future<int> main(List<String> args) async {
+  print("Starting BugVault Server...");
+
+  // Check for settings.dat, which should contain all basic information.
+  // Then check if any data exists. If not, create data hierarchy
+
+  print("Thank you for choosing BugVault! - Shutting down...");
+  return 0;
+}