container: root: macros: add Pluggable support

- Adds requirements to support auto-(un)load'ing, refactors

- Adds loader argument to unit tests and benchmarks
  * Filters can now be passed as a loader argument

- Adds loader argument to Hash macro
  * Factored out from shell caller

container/src/root/macro/web/internal/crypto.C

@@ -1,6 +1,6 @@
 // docker-finance | modern accounting for the power-user
 //
-// Copyright (C) 2021-2025 Aaron Fiore (Founder, Evergreen Crypto LLC)
+// Copyright (C) 2021-2026 Aaron Fiore (Founder, Evergreen Crypto LLC)
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -51,7 +51,8 @@ namespace macro
 namespace web
 {
 //! \namespace dfi::macro::web::internal
-//! \brief ROOT web-based macros for internal use only
+//! \brief ROOT web server dfi macros for internal use only
+//! \details Primarily implementation for public-consuming macros
 //! \since docker-finance 1.0.0
 namespace internal
 {