Setup shaders for text rendering based on VEFontCache samples

docs/Readme.md

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+# Docs
+
+I haven't gotten around to this yet. After the codebase is bootstrapped I'll be jotting down all the info..

docs/ui.md

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 # UI
 
+TODO...
+

docs/ui_state.md

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-# UI
-
-## Ideal UI_Box processing per-frame
-
-Would be done in this order:
-
-Build Graph Start
-
-0. Parent constructed
-1. `ui_box_make()`
-2. Prepare layout & style
-3. Construct & process children
-4. Post-children populated processing
-5. Auto-layout box
-6. Process signal from children & depdendent events
-7. `ui_signal_from_box(box)`
-8. Process state dependent on signal
-9. ... Eventual Render Pass
-
-Issues:
-
-You want to batch auto-layout to be deferred to the end of the construction for the state graph of the frame.  
-Rendering should be handled outside of the update tick asynchronously (at worst case).   
-StyleCombo and LayoutCombos are not stored in UI_Box (it would b N * (Style + Layout) per box of memory where N is the number of entries in a combo (right now there is 4) )  
-A layout must be choosen before auto-layout occurs and rn the convention is that layout & style are choosen at the end of a signal since it depends on the box's state from the signal.  
-
-Adjusted order:
-
-0. Parent constructed
-1. Prepare layout & style beforehand
-2. `ui_box_make()`
-3. `ui_signal_from_box(box)`
-4. Construct & process children
-5. Post-children populated processing
-6. ... Build Graph End
-7. Auto-Layout Pass
-8. Eventual Render Pass
-
-