Re-export JavaRuntime from the JavaKit module

There's no way to use JavaKit without the JavaRuntime module, so ensure that
it's always available.

Author: DougGregor

Sources/Java2Swift/JavaToSwift.swift

@@ -19,7 +19,6 @@ import JavaKitJar
 import JavaKitNetwork
 import JavaKitReflection
 import JavaKitVM
-import JavaRuntime
 import SwiftSyntax
 import SwiftSyntaxBuilder
 

Sources/JavaKit/BridgedValues/JavaValue+Array.swift

@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import JavaRuntime
 import JavaTypes
 
 extension Array: JavaValue where Element: JavaValue {

Sources/JavaKit/BridgedValues/JavaValue+Bool.swift

@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import JavaRuntime
 import JavaTypes
 
 extension Bool: JavaValue {

Sources/JavaKit/BridgedValues/JavaValue+FloatingPoint.swift

@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import JavaRuntime
 import JavaTypes
 
 extension Float: JavaValue {

Sources/JavaKit/BridgedValues/JavaValue+Integers.swift

@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import JavaRuntime
 import JavaTypes
 
 extension Int8: JavaValue {

Sources/JavaKit/BridgedValues/JavaValue+String.swift

@@ -12,7 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import JavaRuntime
 import JavaTypes
 
 extension String: JavaValue {

Sources/JavaKit/JavaRuntime+Reexport.swift

@@ -0,0 +1,15 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2024 Apple Inc. and the Swift.org project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of Swift.org project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+@_exported import JavaRuntime

Sources/JavaKitVM/JavaVirtualMachine.swift

@@ -13,7 +13,6 @@
 //===----------------------------------------------------------------------===//
 
 import JavaKit
-import JavaRuntime
 
 typealias JavaVMPointer = UnsafeMutablePointer<JavaVM?>
 

Tests/JavaKitTests/BasicRuntimeTests.swift

@@ -15,7 +15,6 @@
 import JavaKit
 import JavaKitNetwork
 import JavaKitVM
-import JavaRuntime
 import Testing
 
 @MainActor

USER_GUIDE.md

@@ -57,7 +57,6 @@ Now, in the `HelloSwift` Swift library, define a `struct` that provides the `mai
 
 ```swift
 import JavaKit
-import JavaRuntime
 
 @JavaClass("org.swift.javakit.HelloSwiftMain")
 struct HelloSwiftMain {
@@ -87,7 +86,6 @@ The easiest way to build a command-line program in Swift is with the [Swift argu
 ```swift
 import ArgumentParser
 import JavaKit
-import JavaRuntime
 
 @JavaClass("org.swift.javakit.HelloSwiftMain")
 struct HelloSwiftMain: ParsableCommand {