admin/netdata: Update to 1.22.1

Update netdata to 1.22.1
Disable cloud functionality
Shoehorn patches from FreeBSD's ports repo
Remove cloud notifications and netdata's self-update feature
json-c is no longer optional

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

admin/netdata/patches/003-extra-patch-web_gui_main.js.patch

@@ -0,0 +1,15 @@
+--- a/web/gui/main.js
++++ b/web/gui/main.js
+@@ -745,11 +745,7 @@ function renderMyNetdataMenu(machinesArr
+     if (!isSignedIn()) {
+         if (!NETDATA.registry.isRegistryEnabled()) {
+             html += (
+-                `<div class="info-item" style="white-space: nowrap">
+-                    <span>Please <a href="#" onclick="signInDidClick(event); return false">sign in to netdata.cloud</a> to view your nodes!</span>
+-                    <div></div>
+-                </div>
+-                <hr />`
++                ``
+             );
+         }
+     }