extended repertoire of latest muchunicode conversions

extended repertoire of latest muchunicode conversions

More relevant matches from later or obscure unicode extensions:
- Filler lookalikes and/or digraphs for:
  - "c" (with hook to refer to "h" pronunciation),
  - "un" (armenian t),
  - "i" (information symbol),
  - "co" (digraph),
  - "d" (roman 500),
  - "e" (estimated symbol).
- Acute variants for "h" and "d" (fuzzy semantics but similar).
- Letter variants with dot below,
  - only missing "C"/"c", good for combining dot and diaeresis.
- Stroked variants for "m" (mill) and "n" (oblique), improved for:
  - "d" (overlay),
  - "u" (stroke without smallcaps standin).
  - "U" (bar),
  - complementary digits.