AMADEUS: Implementation of lkt-lib

First implementation of lkt-lib in rust for amadeus and lkt-rs:

• Now amadeus can display basic information
• Also add the base rust parts in lektord

src/main/server.c

@@ -19,6 +19,7 @@
 REG_DECLARE(sdl2_reg)
 REG_DECLARE(qt_window_reg)
 REG_DECLARE(repo_reg)
+REG_DECLARE(repo_rs_reg)
 #endif
 
 /* TODO: Donesn't work, maybe stdin is no longer valid at the point where that
@@ -38,6 +39,7 @@ main(int argc, char *argv[])
     REG_ADD(launch_caching)
     REG_ADD(database_upgrade_scheme)
 #if defined(LKT_STATIC_MODULE)
+    REG_REGISTER("repo_rs", repo_rs_reg)
     REG_REGISTER("repo", repo_reg)
     REG_REGISTER("sdl2", sdl2_reg)
     REG_REGISTER("qt", qt_window_reg)