Adds an example extension written in Rust and fixes a number of bugs

This patch:
- Adds a complete extension written in Rust, with all of the build
  system logic to support Rust development as well.
- Fixes an issues on Intel systems where the MSR bitmaps were not
  set up properly.
- Fixes a number of issues with UEFI.
- Fixes a number of issues with Windows, including a BSOD issue
  with narrow contracts.

example/default_rust/include/allocated_status_t.rs

@@ -0,0 +1,36 @@
+/// @copyright
+/// Copyright (C) 2020 Assured Information Security, Inc.
+///
+/// @copyright
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+///
+/// @copyright
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+///
+/// @copyright
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+/// SOFTWARE.
+
+/// <!-- description -->
+///   @brief Defines the allocation status of a resource
+///
+#[derive(Debug, Copy, Clone, PartialEq, PartialOrd)]
+pub enum AllocatedStatusT {
+    /// @brief defines the deallocated state for a resource
+    Deallocated,
+    /// @brief defines the allocated state for a resource
+    Allocated,
+    /// @brief defines the zombie state for a resource
+    Zombie,
+}