✨ Moved modules and hm dir to hosts dir. Moved some code to shared and extended lib with custom functions

lib/default.nix

@@ -0,0 +1,21 @@
+# FIXME(lib.custom): Add some stuff from hmajid2301/dotfiles/lib/module/default.nix, as simplifies option declaration
+{ lib, ... }:
+
+{
+  # use path relative to the root of the project
+  relativeToRoot = lib.path.append ../.;
+  scanPaths =
+    path:
+    builtins.map (f: (path + "/${f}")) (
+      builtins.attrNames (
+        lib.attrsets.filterAttrs (
+          path: _type:
+          (_type == "directory") # include directories
+          || (
+            (path != "default.nix") # ignore default.nix
+            && (lib.strings.hasSuffix ".nix" path) # include .nix files
+          )
+        ) (builtins.readDir path)
+      )
+    );
+}