Kaitai-based Intel ACM and BootGuard parsers

As the first step towards automated parsing, this change set replaces outdated BootGuard-related parsers with shiny new KaitaiStruct-based ones.
It also does the following:
- improves Intel FIT definitions by using the relevant specification
- adds sha1, sha384, sha512 and sm3 digest implementations
- updates LZMA SDK to v22.01
- moves GUIDs out of include files to prevent multiple instantiations
- enforces C++11
- adds Kaitai-based parsers for Intel FIT, BootGuard v1 and BootGuard v2 structures
- makes many small refactorings here, there and everywhere

common/sha256.h

@@ -1,27 +0,0 @@
-/* sha256.h
-
-Copyright (c) 2017, LongSoft. All rights reserved.
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution.  The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-*/
-
-#ifndef SHA256_H
-#define SHA256_H
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define SHA256_DIGEST_SIZE 32
-
-void sha256(const void *in, unsigned long inlen, void* out);
-    
-#ifdef __cplusplus
-}
-#endif
-#endif // SHA256_H