Rewrite core of the XTLDR boot loader

Reviewed-on: xt-sys/exectos#7
Reviewed-by: Piotr Likoski <likoski@noreply.codingworkshop.git>
Co-authored-by: Rafal Kupiec <belliash@codingworkshop.eu.org>
Co-committed-by: Rafal Kupiec <belliash@codingworkshop.eu.org>

sdk/cmake/version/xtver.h.cmake

@@ -29,4 +29,7 @@
 #define XTOS_COMPILER_NAME               "@CMAKE_C_COMPILER_ID@"
 #define XTOS_COMPILER_VERSION            "@CMAKE_C_COMPILER_VERSION@"
 
+#define XTLDR_VERSION_MAJOR              @XTLDR_VERSION_MAJOR@
+#define XTLDR_VERSION_MINOR              @XTLDR_VERSION_MINOR@
+
 #endif /* __XTGEN_XTVER_H */