Added picom module, fixed module loading

modules/picom/init.lua

@@ -0,0 +1,8 @@
+return {
+	init = function()
+		local conf = conf_dir .. "/modules/picom/picom.conf"
+
+		awful.spawn("killall picom")
+		awful.spawn("picom -b --conf \"" .. conf .. "\"")
+	end
+}

modules/picom/picom.conf

@@ -0,0 +1,18 @@
+shadow-radius = 0
+shadow-opacity = 0
+
+// Enable fading initially.
+// Finer config is in fade-exclude.
+fading = true
+fade-in-step = 0.04
+fade-out-step = 0.03
+fade-delta = 10
+
+fade-exclude = [
+	"class_g != 'awesome'"
+]
+
+inactive-opacity = 1
+active-opacity = 1
+inactive-dim = 0
+