feat: add batch 4 base-source wrappers (MangaCatalog, PizzaReader, Monochrome, MangAdventure, EroMuse)

15 MangaCatalog en/ sources (franchise-specific read* sites), hniscantrad (PizzaReader/all),
monochromescans (Monochrome), assortedscans (MangAdventure), eightmuses (EroMuse).

sources/all/hniscantrad/hniscantrad.go

@@ -0,0 +1,16 @@
+package hniscantrad
+
+import (
+	"goyomi/internal/registry"
+	base "goyomi/sources/base/pizzareader"
+)
+
+func New() *base.Source {
+	return base.New(base.Config{
+		Name:    "HNI-Scantrad",
+		BaseURL: "https://hni-scantrad.net",
+		Lang:    "all",
+	})
+}
+
+func init() { registry.Register(New()) }