This lets you use PS3 Rock Band controllers with Wii Rock Band and
Guitar Hero games.
A normal user will probably never have any reason to disable this
behavior, but I figured maybe there's some person out there who would
like to disable it. (For instance, I know there's a mod for RB3 that's
trying to implement the same kind of cross-console controller
compatibility, and that can only be tested if the behavior I'm adding is
disabled.) So the behavior is controlled by an INI-only setting.
Removed VolumeChanged signal, as ConfigChanged will trigger what is needed.
Only applies UpdateSoundStream to things that can change during emulation.
Settings::SetVolume might no longer be used, but left it in.
Gecko codes in Dolphin feature a dedicated field for the creator of the
cheat code. When saved into the INI file, the code name and the creator
name are concatenated, and then inserted in the `[Gecko]` section:
```ini
[Gecko]
$<cheat code name> [<creator>]
<code line 1>
<code line 2>
<code line 3>
<...>
$<other cheat code name> [<creator>]
<code line 1>
<code line 2>
<code line 3>
<...>
```
On the other hand, enabled codes are listed under the `[Gecko_Enabled]`
section, but in this case the creator name is omitted from the line:
```ini
[Gecko_Enabled]
$<cheat code name>
$<other cheat code name>
```
Having the creator name in the `[Gecko]` section but not in the
`[Gecko_Enabled]` section is arguably not ideal, but this is legacy
behavior in Dolphin.
The **Cheat Code Editor** dialog is not acknowledging this subtle
behavior in Dolphin: the cheat code name and the creator name *can* be
both inserted in the name field. This issue manifests as an inconsistent
state where a Gecko code that *appears* to be enabled has no effect when
the game is launched.
As part of this fix, the creator name (if present) is now moved into the
dedicated creator field before the code is stored internally.
Test plan:
- Right-click on any game and open the **Properties** dialog.
- Switch to the **Gecko Codes** tab.
- Press the **Add New Code...** button.
- In the **Cheat Code Editor** dialog:
- Enter `This is a test [Jane Doe]` in the **Name:** field.
- Enter `01234567 00000000` in the **Code:** field.
- Press **Save**.
- Observe that the newly added code is now in the list, and *appears* to
be enabled.
- Close the **Properties** dialog.
- Right-click on the same game and open the **Properties** dialog again.
**Without** the fix, the newly added code, while still on the list, has
been inadvertently disabled (it was never really enabled!).
**With** the fix, the newly added code is the list and remains enabled.
This fixes https://bugs.dolphin-emu.org/issues/13695.
