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As the first step towards automated parsing, this change set replaces outdated BootGuard-related parsers with shiny new KaitaiStruct-based ones.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/kaitai/custom_decoder.h

@@ -0,0 +1,16 @@
+#ifndef KAITAI_CUSTOM_DECODER_H
+#define KAITAI_CUSTOM_DECODER_H
+
+#include <string>
+
+namespace kaitai {
+
+class custom_decoder {
+public:
+    virtual ~custom_decoder() {};
+    virtual std::string decode(std::string src) = 0;
+};
+
+}
+
+#endif