Thendar's Auction Decor Assistant

Changelog
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v3.00
- Adding some new major features - Posting and Canceling!
- There are lots of addons that do these things - functionality here is limited to decor items only
- Reclaimed some tab space for the new goodies
   - Renamed "Can Sell / Selling" tab to just "Sell"
   - Renamed "Shopping" tab to just "Shop"
   - Renamed "Auction House" tab to just "AH"
   - Removed "Compare vs AH" button (this is now automatic in the background when selecting tab)
- Added new Posting tab
   - Automatically scans bags and Warbank for decor items, and labels accordingly
   - Checks Auction House for current price of all matching decor items
   - Adds lowest discovered price as default, and populates Sell Price (which can be edited)
   - Action column will define logic to apply to the list when clicking the Sell All button at the bottom
   - Items flagged as Warbank will be marked as Keep, and non-interactable
   - Toggle at top of Action column will toggle all checkboxes between Keep and Sell (of course!)
   - Clicking Sell All will sell items action flagged as such, one at a time (with a popup confirmation for each)
- Added new Canceling Tab
   - Clicking Scan Now will check all currently posted auctions
   - Clicking Cancel Undercuts will cancel all auctions flagged as such, one at a time (with a popup confirmation for each)
- Note: No, these new actions cannot be automated to Yes to All. Blizzard explicitly forbids and prevents non-hardware interactive confirmations
- Moved Expansion filter dropbox into Sell frame, to make space for new Search box
- Search will function independently on each tab, and autoclear when switching tabs
- Tidied up the Shop tab, to make room for some future improvements ;)