refactor!: update libdave submodule, include licenses

The upstream libdave repo received a bunch of refactors almost exclusively
for the C API, which we as non-C-API consumers must now unfortunately deal with.

Notable upstream changes include:
- `src/dave/*` was moved to `src/*`, and the includes were set to private,
  which means we now manually include this path and adjust the include names.
  it's not pretty, but what can you do.
- The openssl/mlspp links were changed to `PRIVATE`, but we need access to mlspp,
  so they were changed back to public. This doesn't affect the end result whatsoever,
  but makes it a tiny bit easier to just reuse that logic.

Author: shiftinv

CMakeLists.txt

@@ -83,7 +83,10 @@ nanobind_add_stub(
 
 
 # Link libdave
+set(INSTALL_VCPKG_LICENSES ON)
 add_subdirectory(${LIBDAVE_SRC_PATH})
+
+target_include_directories(_dave_impl PRIVATE "${LIBDAVE_SRC_PATH}/src")
 target_link_libraries(_dave_impl PRIVATE libdave)
 
 # Install library and stub file in wheel

libdave

@@ -1,4 +1,4 @@
-#include <dave/common.h>
+#include <dave/version.h>
 
 #include "binding_core.hpp"
 #include "logging.hpp"
@@ -22,9 +22,6 @@ NB_MODULE(_dave_impl, m) {
 
     m.doc() = "Python bindings to the C++ impl of Discord's DAVE protocol";
 
-    m.attr("INIT_TRANSITION_ID") = dave::kInitTransitionId;
-    m.attr("DISABLED_VERSION") = dave::kDisabledVersion;
-
     nb::enum_<dave::MediaType>(m, "MediaType", nb::is_arithmetic(), "")
         .value("audio", dave::MediaType::Audio, "")
         .value("video", dave::MediaType::Video, "");

src/dave.cpp

@@ -1,5 +1,5 @@
-#include <dave/decryptor.h>
 #include <dave/logger.h>
+#include <decryptor.h>
 
 #include "binding_core.hpp"
 

src/decryptor.cpp

@@ -1,5 +1,5 @@
-#include <dave/encryptor.h>
 #include <dave/logger.h>
+#include <encryptor.h>
 
 #include "binding_core.hpp"
 

src/encryptor.cpp

@@ -1,4 +1,4 @@
-#include <dave/mls/session.h>
+#include <mls/session.h>
 
 #include "binding_core.hpp"
 #include "utils.hpp"

src/session.cpp

@@ -1,4 +1,4 @@
-#include <dave/mls/parameters.h>
+#include <mls/parameters.h>
 
 #include "binding_core.hpp"