start design file for dumping ideas

design.md

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+# design
+
+A dump for fleshing out in-progress/future design ideas.
+
+## tables
+
+a table can like the others build off of bbansi to support some basic ansi rendering.
+to do this effectively I may need to pull in unicode and unicode_db.
+
+but the general idea would probably be something like:
+
+```nim
+var table = newHwylTable(style = Ansi)
+table.addColumn(name = "movie")
+table.addColumn(name = "box office")
+table.addSep()
+table.addRow "Avatar", "2,923,706,026"
+table.addRow "Avengers: Endgame", "2,797,501,328"
+echo table
+```
+resulting in:
+
+```txt
+| movie             |  box office   |
+|-------------------|---------------|
+| Avatar            | 2,923,706,026 |
+| Avengers: Endgame | 2,797,501,328 |
+```
+
+A good table API could be reused by `hwylcli` using a borderless table for flags and commands