[DVMod] Initial Design Todo on View Modifier Pattern

[lilingxi01]

Built-ins DVModifier (transferred from #12)

• Preset Modifier
• Dock Modifier (I forget what I wanted to make in this "dock")
• Background Modifier
• Background Pattern Modifier
• Border Modifier
• Border Pattern Modifier
• Frame Size Pattern Modifier (Pending to be decided if we really need it)
• Dynamic Frame Size Modifier
• Content Color Modifier
• Content Color Pattern Modifier

Move to next release

The unfinished parts have already been moved to the next release: #25