Now standalone plugin

First impl of standalone colorscheme

lua/astrobox/highlights/init.lua

@@ -0,0 +1,18 @@
+local utils = require("astrobox.utils")
+
+return function(palette, config)
+    local HL = {}
+    local function load_mod(mod, mod_name)
+        local ok, res = pcall(mod, palette, config)
+        if ok and res then
+            HL = vim.tbl_extend("error", HL, res)
+        else
+            vim.notify("Failed to load module " .. mod_name .. " (" .. res .. ")")
+        end
+    end
+    utils.visit_astrobox_modules("highlights.modules", load_mod)
+
+    HL = vim.tbl_extend("force", HL, config.overrides)
+
+    return HL
+end