[Feature Request] Document keyboard shortcuts on the debugger

[elad335]

The debugger has some features which most people who use dont know exist such as registers editor, instructions editor, SPU and RSX captures. because they cant know it, it only exists in code without any documentation.

[illusion0001]

Thanks to @MSuih for mentioning, good for beginners.
Keys are located here.

rpcs3/rpcs3/rpcs3qt/debugger_frame.cpp

Lines 236 to 297 in ca9898e

	if (modifiers & Qt::ControlModifier)
	{
	switch (event->key())
	{
	case Qt::Key_G:
	{
	ShowGotoAddressDialog();
	return;
	}
	}
	}
	else
	{
	switch (event->key())
	{
	case Qt::Key_E:
	{
	instruction_editor_dialog* dlg = new instruction_editor_dialog(this, pc, cpu, m_disasm.get());
	dlg->show();
	return;
	}
	case Qt::Key_F:
	{
	if (cpu->id_type() != 2)
	{
	return;
	}
	static_cast<spu_thread*>(cpu.get())->debugger_float_mode ^= 1; // Switch mode
	return;
	}
	case Qt::Key_R:
	{
	register_editor_dialog* dlg = new register_editor_dialog(this, cpu, m_disasm.get());
	dlg->show();
	return;
	}
	case Qt::Key_S:
	{
	if (modifiers & Qt::AltModifier)
	{
	if (cpu->id_type() != 2)
	{
	return;
	}
	static_cast<spu_thread*>(cpu.get())->capture_local_storage();
	}
	return;
	}
	case Qt::Key_F10:
	{
	DoStep(true);
	return;
	}
	case Qt::Key_F11:
	{
	DoStep(false);
	return;
	}
	}
	}