chore: Significantly restructure folder layout

This moves the various projects from "type-based" folders (such as
"services" or "tools") into more appropriate semantic folders (such as
"nix", "ops" or "web").

Deprecated projects (nixcon-demo & gotest) which only existed for
testing/demonstration purposes have been removed.

(Note: *all* builds are broken with this commit)

fun/gemma/gemma.asd

@@ -0,0 +1,33 @@
+#|
+  This file is part of Gemma.
+
+  Gemma is free software: you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Copyright (c) 2017 Vincent Ambo
+|#
+
+(require 'sb-posix)
+
+(defsystem "gemma"
+  :version "0.1.0"
+  :author "Vincent Ambo"
+  :license "GPLv3"
+  :depends-on (local-time
+               hunchentoot
+               cl-json
+               cl-prevalence)
+  :components ((:module "src"
+                :components
+                ((:file "gemma"))))
+  :build-operation program-op
+  :build-pathname #.(or (pathname  (sb-posix:getenv "GEMMA_BIN_TARGET"))
+                        "gemma")
+  :entry-point "gemma::entrypoint"
+  :description "Gemma is a household task management system"
+  :long-description
+  #.(read-file-string
+     (subpathname *load-pathname* "README.markdown"))
+  :in-order-to ((test-op (test-op "gemma-test"))))