EXT-7779 FIXED Changed wearing panel from inventory panel to a flat list similar to My Outfits view.
- Added common interface for My Outfits and Wearing tabs.
- Changed LLPanelOutfitsInventory to use common interface for My Outfits and Wearing tabs.
- Removed dependency on outfits side panel from inventory bridge context menus.
- Removed unused LLShowCreatedOutfit class from llagentwearables.cpp.
- Restored opening newly created outfit in My Outfits tab.
- Fixed worn items indication for Wearing tab items.

Revieved by Neal Orman at https://codereview.productengine.com/secondlife/r/604/.

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reviewed by Mike Antipov by https://codereview.productengine.com/secondlife/r/637/

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reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/634/

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EXT-7963 FIX introduce new variable "keep_selection_visible_on_reshape" and use it for "edit outfit" flatlist controls.

reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/641/

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EXT-4374 ADDITIONAL FIX Updated initial fix with refreshing from inventory item when a gesture asset is loaded.

Reviewed by Loren Shih at https://codereview.productengine.com/secondlife/r/629/

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EXT-7755 ADDITIONAL FIX Fixed issues with wrong title after an outfit from the Inventory is worn, "Wear..." menu items state is made consistent with "Wear" button.

* Empty string is replaced with "Changing outfits" while changing COF;
* Fixed title to show "No Outfit" after an outfit from the Inventory is worn;
* Fixed bug with visible indicator after an empty folder is DnD from the Inventory "Clothing"
* Updated context and Gear "Wear..." menu items to take into account "isCOFChangeInProgress" state in on_enable callbacks

Reviewed by Neal Orman at https://codereview.productengine.com/secondlife/r/625/

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Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/578/

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reviewed by Richard

Changed text color to white as requested.
Verified results are acceptable

XUI reviewed by Erica

Reviewed by Neal Orman and Mike Antipov https://codereview.productengine.com/secondlife/r/619/

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Calling std::locale("fr_FR.UTF-8") crashes on Linux and Mac. Or
rather, it throws an exception when it doesn't know the locale and we
didn't handle the exception. I now catch the exception and output an
error rather than crash.

Note, this happened because of change 703f3bcf7069, which made us
actually pass a real locale string instead of just "C". So, we were
never actually supporting a locale for LLStringUtil::formatNumber().
There is therefore an open task of making formatNumber() actually
respect the locale. I'll report a separate JIRA to capture that task.

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EXT-7805 FIXED set tool_tip for "plus" button when body_part is selected in "Add more" panel (Edit Outfit)

Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/626/

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reviewed by Richard Nelson, Vadim Savchuk at https://codereview.productengine.com/secondlife/r/616/

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reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/624/

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reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/614/

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- Added method which resets selection and tied it up to DropDownStateChangedCallback.

Reviewed by Neal Orman at https://codereview.productengine.com/secondlife/r/628/

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Backed out changeset: f0e9147baf74

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