engine, gapi, lang, lib: Plumb through new local API

This is a new API that is similar in spirit and plumbing to the World
API, but it intended for all local machine operations and will likely
only ever have one implementation.

engine/local/local.go

@@ -0,0 +1,36 @@
+// Mgmt
+// Copyright (C) 2013-2023+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// 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
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// Package local contains functions and interfaces that are shared between
+// functions and resources. It's similar to the "world" functionality, except
+// that it only involves local operations that stay within a single machine or
+// local mgmt instance.
+package local
+
+import (
+	"context"
+)
+
+// API implements the base handle for all the methods in this package. If we
+// were going to have more than one implementation for all of these, then this
+// would be an interface instead, and different packages would implement it.
+// Since this is not the expectation for the local API, it's all self-contained.
+type API struct {
+	Prefix string
+	Debug  bool
+	Logf   func(format string, v ...interface{})
+}