[decomp] add mips2c converter (#842)

* mips 2 c basic version, not yet tested

* calling works without crashing, but the function doesn't

* it works

* add test

* cleanup and actually add the test

* dont use mips2c by default for font

* clean up formatting

game/kernel/klink.cpp

@@ -17,6 +17,7 @@
 #include "kprint.h"
 #include "common/symbols.h"
 #include "common/goal_constants.h"
+#include "game/mips2c/mips2c_table.h"
 
 namespace {
 // turn on printf's for debugging linking issues.
@@ -785,6 +786,11 @@ void link_control::finish() {
   if (ofh->object_file_version == 3) {
     // todo check function type of entry
 
+    // setup mips2c functions
+    for (auto& x : Mips2C::gMips2CLinkCallbacks[m_object_name]) {
+      x();
+    }
+
     // execute top level!
     if (m_entry.offset && (m_flags & LINK_FLAG_EXECUTE)) {
       call_goal(m_entry.cast<Function>(), 0, 0, 0, s7.offset, g_ee_main_mem);