[confluence] texture updates.

I decided to retry submitting these improvements for two reasons,
1) Since you cannot easily make a theme installer for default skin as it resides in system paths and not userdata that also requires some coding beyond my skills
 2) Since 1 is more time consuming and unlikely to happen as easily. But it could easily be submited as a secondary theme to be included by default.

This is essentially all the current changes of the "revamp" theme  textures at https://github.com/uNiversaI/revamped.themes/releases/tag/v2.2.0 which can also be used to test/review these updates/fixes, by selecting Revamp-osf theme

The only addition new graphics currently unused is commit  6cd3169 [confluence] Add NEW Default HDD icons  …  which probably requires xml or maybe sourcecode changes which are atm beyond my ability.
That adds 3 new types DefaultBDFull/Empty.png and DefaultUSB textures. which I thought would be nice to include. But will require assistance form a skinner to make them usable.

I tried to separate each change into separate commits to maybe make this reviewing simplere (if thats at all possible) Again please use the https://github.com/uNiversaI/revamped.themes/releases/tag/v2.2.0 to actually test.

I will be happy try to accommodate any requests improvements

@ronie or whoever is responsible for deciding, please decide, if not wanted just close the PR.

Note all current psd sources can be found at https://github.com/uNiversaI/revamp-confluence-psds