Fix compiler errors i introduced under clang-cl

remove xe_kernel_export_shim_fn field of Export function_data, trampoline is now the only way exports get invoked
Remove kernelstate argument from string functions in order to conform to the trampoline signature (the argument was unused anyway)
Constant-evaluated initialization of ppc_opcode_disasm_table, removal of unused std::vector fields
Constant-evaluated initialization of export tables
name field on export is just a const char* now, only immutable static strings are ever passed to it
Remove unused callcount field of export.
PM4 compare op function extracted
Globally apply /Oy, /GS-, /Gw on msvc windows
Remove imgui testwindow code call, it took up like 300 kb

src/xenia/kernel/util/shim_utils.h

@@ -554,7 +554,6 @@ struct ExportRegistrerHelper {
         new cpu::Export(ORDINAL, xe::cpu::Export::Type::kFunction, name, TAGS);
     struct X {
       static void Trampoline(PPCContext* ppc_context) {
-        ++export_entry->function_data.call_count;
         Param::Init init = {
             ppc_context,
             0,