Tooltip and File Reading Proofs of Concept

Very basic tooltip implementation
- Popup message when the cursor is idle (stationary) for a period of
time
- Intended to provide helpful information, labels to icons etc.
- Currently entirely for proof of concept

Proof of Concept for reading text files and parsing text
- Can have application launch into CombatMap by changing
configuration.txt
- User settings will be saved in text file for subsequent executions of
the application
- Can extend file reading to implement save/load feature, store object
data for items, abilities, modifiers, etc. outside of the code

The code handling new and expiring error messages should be slightly
more efficient.
FindCurrentUIElement

Moved the logic that determines which UI element is under the cursor
from the HandleInput function into its own function.
- Can reuse results for tooltips, etc.
Merge remote-tracking branch 'origin/UI_Development'
Merge branch 'master' of https://github.com/intro2den/AllDay