[ld.so] Add dynamic library linking

ld.so will now go through all DT_NEEDED entries in the dynamic table and load and relocate
those shared libraries as well. Lazy linking of functions via the PLT is not yet supported,
all PLT entries are looked up ahead of time by ld.so.

src/libraries/j6/init.cpp

@@ -10,7 +10,7 @@
 #include <j6/types.h>
 
 namespace {
-    constexpr size_t static_arr_count = 8;
+    constexpr size_t static_arr_count = 32;
     j6_handle_descriptor handle_array[static_arr_count];
     j6_init_args init_args;
 } // namespace