feat: Added cross-platform .NET scripts support (#1185)

This PR intends to add support for .NET scripts that can extend ImHex's
functionality in a portable and cross-platform way.

---------

Co-authored-by: Justus Garbe <55301990+Nowilltolife@users.noreply.github.com>

plugins/script_loader/source/script_api/v1/bookmarks.cpp

@@ -0,0 +1,9 @@
+#include <script_api.hpp>
+
+#include <hex/api/imhex_api.hpp>
+
+#define VERSION V1
+
+SCRIPT_API(void createBookmark, u64 address, u64 size, u32 color, const char *name, const char *description) {
+    hex::ImHexApi::Bookmarks::add(address, size, name, description, color);
+}