Added Opacity settings for touchscreen controls

[Bankaimaster999]

Added Opacity controls for the user to customize the opacity level of their touchscreen controls. Also, placed both Scale and Opacity settings into one window/option called Adjust Controls.

[lynxnb]

Fixed a small typo in InputOverlayDrawableJoystick.java

[JosJuice]

This is definitely a feature we could use. Some review comments, though:

[Bankaimaster999]

Made all the necessary changes based off the suggestions/advice from JosJuice.

[JosJuice]

Please squash the commits into one. We prefer to not have the git history contain little commits that fix problems that were made earlier in the same pull request.

[MayImilae]

So I made the buttons that are used in the on-screen controls. Once this is merged, I'll make a PR to replace the preset transparency on screen buttons with opaque versions, and then we can just tune this feature for setting default opacity.

However, I'm not sure when I should do it? Like, I can set up a PR with the file changes, but I don't know how to set the default opacities. So either someone could help me with it, or someone could make an additional PR after mine to set it. Also I could make the PR with opaque versions of the buttons now and this PR could set the default opacities, if everyone wants to coordinate like that.

[JosJuice]

The default opacity is set by this line in IntSetting.java:

MAIN_CONTROL_OPACITY(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "ControlOpacity", 50),

It's currently set to 50 in this PR, meaning 50%.

We shouldn't merge a PR that makes the button image files opaque before merging this PR, but I'm fine with either doing it in the other order or doing it all in one PR.

[MayImilae]

Oh, that looks pretty easy. If you prefer I adjust that in my PR then that's totally fine. I'll bug JMC to test it for me. :P

50% of the already transparent buttons would be VERY transparent! I'd be a little alarmed if that was going to stay as is, but I can just adjust it myself in my PR later.

[JosJuice]

I don't think I have any remaining review comments, but you still need to squash the commits into one.

[dolphin-emu-bot]

FifoCI detected that this change impacts graphical rendering. Here are the behavior differences detected by the system:

• aeon-charge-attack on ogl-lin-radeon: diff
• bk-tev on ogl-lin-radeon: diff
• burnout2-vehicletextures on ogl-lin-radeon: diff
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• ed-updated on ogl-lin-radeon: diff
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• fishing-resort-map on ogl-lin-radeon: diff
• fortune-street on ogl-lin-radeon: diff
• fortune-street-fog on ogl-lin-radeon: diff
• fortune-street-white-box on ogl-lin-radeon: diff
• f-zero-rain on ogl-lin-radeon: diff
• inverted-depth-range on ogl-lin-radeon: diff
• jj-awae-mirrored on ogl-lin-radeon: diff
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• last-story-shadows on ogl-lin-radeon: diff
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• lesson08 on ogl-lin-radeon: diff
• luigi-shadows on ogl-lin-radeon: diff
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• mp3-bloom on ogl-lin-radeon: diff
• mp7-text on ogl-lin-radeon: diff
• mtennis-zfreeze on ogl-lin-radeon: diff
• my-word-coach on ogl-lin-radeon: diff
• nddemo-bumpmapping on ogl-lin-radeon: diff
• nddemo-lighting on ogl-lin-radeon: diff
• nfsu-purplerect on ogl-lin-radeon: diff
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• nsmbw-coins on ogl-lin-radeon: diff
• nsmbw-intro on ogl-lin-radeon: diff
• pm-hc-jp on ogl-lin-radeon: diff
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• smb-mirror on ogl-lin-radeon: diff
• smg2-fog on ogl-lin-radeon: diff
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• sms-gc on ogl-lin-radeon: diff
• sms-water on ogl-lin-radeon: diff
• soniccolors-mm on ogl-lin-radeon: diff
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• sonicriderszg-gb on ogl-lin-radeon: diff
• spyro-bloom on ogl-lin-radeon: diff
• spyro-depth on ogl-lin-radeon: diff
• ssbb-mod-lloyd on ogl-lin-radeon: diff
• ssbm-pointsize on ogl-lin-radeon: diff
• ss-timestone on ogl-lin-radeon: diff
• super-sluggers-white-out on ogl-lin-radeon: diff
• sw3-dt on ogl-lin-radeon: diff
• thps3-earlyz on ogl-lin-radeon: diff
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• tla-menu on ogl-lin-radeon: diff
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• vegas-party-depth on ogl-lin-radeon: diff
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• zww-water on ogl-lin-radeon: diff
• zww-waves on ogl-lin-radeon: diff

_{^{automated-fifoci-reporter}}